Mathematics High School

## Answers

**Answer 1**

**Answer:**

52

**Step-by-step explanation:**

## Related Questions

what is the value of x in the equation (5x+3)?

### Answers

**Answer: The value of x is 2**

**Step-by-step explanation:**

**I just subtracted from both sides and you get 2 and another way to say this is 5-3 and 3-3**

2/3x - 2 = 3/7 rewrite without fractions

### Answers

0.67x-2=0.428 that is the approximation

The value of the expression in can be estimated by using **LCM **and **algebraic **rules and it comes 3.64.

How given expression can be rewrite or simplified?

To rewrite the equation 2/3x - 2 = 3/7 without fractions, we need to **eliminate **the fractions by multiplying both sides of the equation by the **least **common multiple (LCM) of the denominators.

The denominators in this **equation **are 3 and 7, and their LCM is 21. So, we will multiply both sides of the equation by 21:

21 x (2/3x - 2) = 21 x (3/7)

Simplifying the left-hand side, we **distribute **the 21 to both terms:

14x - 42 = 9

Adding 42 to both sides, we get:

14x = 51

Finally, **dividing **both sides by 14, we get

x = 3.64 (rounded to two decimal places)

Therefore, the equation 2/3x - 2 = 3/7, rewritten without fractions, is 14x - 42 = 9. The solution to the equation is x = 3.64.

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hello, pls help me. <3

### Answers

Answer:

D. 12

Step-by-step explanation:

Bert's age plus twice Ernie's age is 30. Three times Bert's age plus 8 times Ernie's age is 108. How old are Bert and Ernie?

### Answers

**Answer:**

Bert's age is 15 Ernie's age is 53

**Step-by-step explanation:**

McKenzie sells textbooks. She receives 7% on her first $1,000 in sales and 15% on the balance of her sales. If her sales in one month were $14,500. How much did she earn in total commissions?

### Answers

**Answer:**

She earns $2,025 in commissions.

**Answer:**

★ The answer is she EARNED $2,025 in TOTAL commissions.

**Step-by-step explanation:**

Hope you have a great day

Here are two sums 12/15 + 1/3 and 6/7-1/3which of the two sums is closer in value to 1/2

### Answers

**Answer:**

The second one

**Step-by-step explanation:**

**Answer:**

Simplify

58/35

(Decimal: 1.657143)

**Step-by-step explanation:**

Susan and John are buying cold drinks for a neighborhood picnic. Each person is

expected to drink one can of soda. Susan says that if you multiply the unit

price for a can of soda by the number of people attending the picnic, you will

be able to determine the total cost of the soda. John says that if you divide

the cost of a 12-pack of soda by the number of sodas, you will determine the

total cost of the sodas.

### Answers

**Answer:**

Susan has suggested a correct method to calculate the amount of money

**Step-by-step explanation:**

Here we must check what each person is calculating. First, we consider Susan's method. She has suggested that we multiply the cost per soda, that is dollars/soda by the number of sodas required, we get the total cost.

Assuming that 18 sodas are required and each costs $0.20, the total cost according to Susan is $3.60.

John suggests we divide the cost of a 12 pack of soda by the number of sodas required. Considering a 12 pack of soda costs $12 and the same amount of sodas, 18, are required, we get that each soda costs $0.66.

Looking at these answers, we see that Susan has suggested a correct method to calculate the amount of money needed to buy a number of sodas. John has suggested the amount each person would have to contribute if everyone at the party was trying to buy a 12-pack of soda; regardless of whether more or less than a 12-pack is required.

What is the solution to this system of linear equations?

x-3y=-2

x+3y=16

1.(7,3)

2.(3,7)

3.(-2,-3)

4.(-3,-2)

### Answers

The answer to this is 1(7,3)

in 10000$ in 12%intrest for 2 years how much interest you get??

### Answers

**Here****,**

*amount** **(**p**)** **=**1**0**,**0**0**0**$*

*Time** **period** **(**t**)**=**2** **years** *

*Rate** **of interest** **(**r**)**=**1**2**%*

So,**Intrest**** ****(****I****)**

we know that,

[tex]\boxed{ I=\dfrac{p×t×r}{100 }[/tex]

**According**** **to the question,

I=⠀[tex]\tt{\dfrac{10000×12×2}{100} }[/tex] ⠀

=[tex]\tt{\dfrac{\cancel{10000}×12×2}{\cancel{100}} }[/tex] ⠀

=[tex]\tt{ 100×12×2 }[/tex] ⠀

=[tex]\tt{ 2400 }[/tex] ⠀

So,

**2****4****0****0****$**** **intrest in 10000$in 12%for 2 years

What is the value of x in the figure?

### Answers

**Answer:**

29

**Step-by-step explanation:**

Since we know that the x-axis is 180 degrees and the square looking symbol represents that it is 90 degrees, we know that the other side has to also equal 90 degrees since 180-90=90.

To find the x, we need to subtract 90 from 61, which would give us 90-61 = 29.

X+61=90

X=29

Everytime it shows the x in the graph it means you have to and the number by x. Than there’s a 90 degree square which now you know that x+61 equals 90 than you solve for x

PLEASE ANSWER ASAP

Find the equation of the exponential function represented by the table below:

### Answers

**Answer:**

y = 4 [tex](2)^{x}[/tex]

**Step-by-step explanation:**

For an exponential function in standard form

y = a [tex](b)^{x}[/tex]

To find the values of a and b, use ordered pairs from the table

Using (0, 4 ), then

4 = a[tex]b^{0}[/tex] ( [tex]b^{0}[/tex] = 1 ), so

a = 4

y = 4[tex]b^{x}[/tex]

Using (1, 8 ), then

8 = 4[tex]b^{1}[/tex] = 4b ( divide both sides by 4 )

2 = b

Thus

y = 4 [tex](2)^{x}[/tex] ← exponential function

If f(x) = 3x - 2, find f-'(x)

### Answers

**Answer:**

f⁻¹(x) = (x + 2)/3

**Step-by-step explanation:**

I'm going to assume the question is asking for the inverse. If that is the case, you want to switch x and y in the equation and solve for y.

f(x) = 3x - 2

x = 3f(x) - 2

x + 2 = 3f(x)

(x + 2)/3 = f⁻¹(x)

Therefore, the inverse is f⁻¹(x) = (x + 2)/3.

If 6x – 10y

9 is a true equation, what would be the value of -18x + 30y?

### Answers

**Answer:**

*The value of -18x + 30y is -27*

**Step-by-step explanation:**

Algebraic Expressions

It's given that:

6x - 10y = 9

We are required to find the value of

-18x + 30y

The easiest way to solve the problem is to visualize that:

-18x = -3(6x)

30y = -3(-10y)

This means that the second expression is equal to the first expression multiplied by -3, thus:

-18x + 30y = -3(6x - 10y) = -3*9 = -27

**The value of -18x + 30y is -27**

Jake has 6 quarters 2 dimes and a nickel does he have enough to buy a dog bone that costs 1.49?

### Answers

**Answer:**

**Jake does have enough to buy a dog bone that cost $1.49**

**Step-by-step explanation:**

6 quarters = $1.50

2 dimes = $0.20

1 nickel = $0.05

So add it all together: $1.50 + $0.20 + $0.05 = $1.75

What is 2.25% of 3,200 ?

### Answers

**Answer:**

72

**Step-by-step explanation:**

(pls mark me brainliest if u can)

The perimeters of the rectangle and triangle shown below are both equal.

### Answers

**Answer:**

x=0.4

perimeter of rectangle and perimeter of triangles is 7.6 each

**Step-by-step explanation:**

2(7x-1.8)+2(4x+1.2)=perimeter of rectangle

6x+0.4+4x+6x+0.08=perimeter of triangle

since the perimeters are equal then

2(7x-1.8)+2(4x+1.2)=6x+0.4+4x+6x+0.8

14x-3.6+8x+2.4=16x+1.2

22x-1.2=16x+1.2

22x-16x-1.2+1.2=16x-16x+1.2+1.2

6x=2.4

x=0.4

*The length of the congruent sides of an isosceles triangle is 17cm. If the base of the triangle is 16 cm, find the length of the median.*

1️⃣ 18 cm

2️⃣ 8 cm

3️⃣ 15 cm

4️⃣ 8.5 cm

### Answers

**Answer:**

The median is 15cm.

**Step-by-step explanation:**

Given that the The length of the congruent sides of an isosceles triangle is 17cm . the base of the triangle is 16 cm . And we need to find the median .

We know that in a isosceles triangle

All perpendicular bisector , altitude and median concide with each other.

This means that the base will be divided into two equal parts For Figure refer to attachment .

**Using**** ****Pyth****agoras**** Theorem**** ****:****-**

⇒ BM² + AM² = AB²

⇒ (17cm)² = (8cm)² + AM²

⇒ 289 cm² = 64cm² + AM²

⇒ AM² = 289 cm² - 64 cm²

⇒ AM² = 225 cm²

⇒ AM = √225 cm²

**⇒**** ****AM**** ****=**** ****1****5**** ****cm**** ****.**

**Hence**** ****the**** ****meas****ure**** of**** ****media****n**** ****is**** ****1****5**** ****cm**** ****.**

how do i solve it?

.

### Answers

**Answer:**

The answer should be x = 3.

**Step-by-step explanation:**

Here is my work attached below:

Write an explicit formula for a_na

n

, the n^{\text{th}}n

th

term of the sequence 25, 32, 39, ...25,32,39,....

### Answers

**Answer:**

7n + 18

**Step-by-step explanation:**

it goes up in 7 so 7n and 25-7 =18

The **Explicit formula **for nth term is 18 + 7n.

What is Explicit Formula?

It is simple to **calculate **the explicit formula for the **arithmetic sequence **from the term of the sequence.

The explicit formula for the arithmetic sequence a, a + d, a + 2d, a + 3d,........a + (n - 1)d, and the nth **term **of the sequence.

We have the **sequence **25, 32, 39, ....

This is an **arithmetic **sequence.

First term = 25

and, **Common** **difference**(d) = second term - first term = 32-25 = 7

Now, the nth **term **of **sequence**

= a + (n- 1)d

= 25 + (n-1)7

= 25 + 7n - 7

= 18 + 7n

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Which of the following functions is graphed below?

### Answers

**Answer:**

B. y = [x] + 7

**Step-by-step explanation:**

If you are going left on the x-axis your sign would be positive

Can somebody plz help answer these questions correctly! (only if u know it) thanks!!<3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST!!!:DD

### Answers

**Answer:**

18-Yes 19-No 20-yes 21- yes

**Step-by-step explanation:**

18

1 to 4, 5 to 20

Yes, this is correct

WE can multiply 1*5 and 4*5 to get 5 to 20

19

Wrong

3 to 11, 1 to 3 isn't correct

For example, if we were to divide 3 by 3 to get one, 11/3 is 2. (6)

So, no

20

2/3 is 2 to 3

14/21 is 14 to 21

If we multiply 2*7 and 3*7, we get 14 to 21

21 25 to 30 is equal to 35 to 42

They just added 7 to both numbers

if we divide ratio 1 by 5, we get 5:6

if we divide ratio 2 by 7 we get 5 to 6

18. Yes

19. No

20. Yes

21. I think so

A triangle has three angles of 36°, 34° and 110°.

Classify the triangle.

A. equilateral

B. obtuse

C. acute

D. right

### Answers

The type of **triangle** is an obtuse **triangle**.

What are obtuse triangles?

A **triangle** is a 3-sided polygon.Every triangle has three sides and three angles, some of which may be the same. When the angles are thesame, the triangle is called an equilateral **triangle**.

An **obtuse triangle** is a type of triangle in which one of it's angles is more than 90°.

An acute **triangle** is a type of **triangle** in which none of it's angles is UpTo 90°

Also a right **triangle** is a type of **triangle** in which one of the angles is exactly 90°.

Therefore since one of the angles is 110 and it is greater than 90°, the angle is an **obtuse** **triangle**.

learn more about **obtuse** **triangle** from

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Which is the simplified version of 7x−4(x−8)=56?

A

11x+32=56

B

3x−8=56

C

3x−32=56

D

3x+32=56

### Answers

**Answer****:**

D.3x+32=56

**Step-by-step explanation:**

7x-4(x-8)=56

7x-4x+32=56

3X+32=56

IF YOU WANT THE VALUE OF X

3x+32-32=56-32

3x=24

[tex] \frac{3x}{3} = \frac{56}{3} [/tex]

x=8

If it's helpful ❤❤❤❤

THANK YOU

please tell me the step process of this btw this is 7th-grade math its angle measurements I'm confused about the process pls help.

### Answers

**Answer:**

Angle BDA is 90°

(2x + 3) + 55 = 90

2x + 3 + 55 = 90

2x + 58 = 90

2x = 90 - 58

2x = 32

x = 32/2

x = 16

Hence,

**x=16**

**x=16Angle BDA is 90°.**

Selve. Show your work.

13. Age Julio's father is 4 times as old as Julio.

In 10 years, he will be 2 less than Julio's age

times 3. How old are Julio and his father?

### Answers

**Answer:**

80

**Step-by-step explanation:**

Evaluate if k = 3.

k2 + 5 = [?]

### Answers

Answer:

3(2)+5

=6+5

=11

Step-by-step explanation:

Hey there!

If [tex]\bf{k=3}[/tex] then substitute it for the [tex]\bf{k \ value}[/tex][tex]\bf{3^2+5}\\ \bf{3^2\rightarrow 3\times3 = 9} \\ \bf{9+5= 14}\\\boxed{\bf{Answer:14}}}\checkmark[/tex]Good luck on your assignment and enjoy your day!~[tex]\frak{LoveYourselfFirst:)}[/tex]

what are the coordinates of the x-intercept of the graph?

a. (-6,0)

b. (0,-6)

c. (9,0)

d. (0,9)

### Answers

**Answer:**

d. (9, 0)

**Step-by-step explanation:**

(x, y) so...

Where the line crosses the x-plane, x = 9

Since this is the x-intercept y will always equal zero

Therfore x-int = (9, 0)

Need done ASAPppppppp

### Answers

**Answer:**

a. Yes it's a proportional relationship. It is because Distance is travelled uniformly.

b. Unit is m/min^2.

c. It means he is travelling in meters with minutes counting how far he have travelled.

Hope this helped. Dont forget to give thanks.

HELP! I NEED THIS DONE IN 30 MINUTES!!!

Draw a diagram and solve for the missing measure. Round to the nearest tenth.

1. A car travels 60 miles due north then makes a turn due west. It travels 72 miles west. How far is the car from its starting point?

2. Michelle delivers books to school libraries. Her truck has a slide out ramp for unloading the books. The top of the ramp is 3 feet above the ground. The ramp itself is 5.2 feet long. What is the horizontal distance the ramp reaches?

3. Pete has a 15-foot ladder. The safety instructions recommend he should have the base of the ladder 6 feet from the base of the wall he will lean the ladder against. How high will the ladder reach the wall?

4. A local businessman bought a square plot of land. The sides of the lot measure 32 feet on each side. He decides to split the lot into two equal-sized right triangles by putting a fence down the diagonal. Approximately how many feet of fencing will he need?

5. A rectangular prism is 5 inches long, 8 inches wide and 10 inches tall. What is the length of its longest diagonal?

6. Chris is mailing his friend a poster that has been rolled up in a long tube. He has a box that measures 20 inches by 8 inches by 4 inches. What is the maximum length the rolled poster can be?

### Answers

**Answer:**

2. 93.7 miles

**Step-by-step explanation:**

An ice cream shop sold 48 vanilla milkshakes in a day, which was 40% of the total numberof milkshakes sold that day. What was the total number of milkshakes that the ice creamshop sold that day?

### Answers

**Answer:**

120 total milkshakes sold