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4 years ago

If you multiply me by 5 and subtract 6 from me you get 14. what number am I.

Mathematics

1 answer:

damaskus [11]4 years ago

5 0

Answer:

tje answer is 4

Step-by-step explanation:

4x5=20

20-6=14

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Use the expression below to answer the question. 20 + 8y – 9y – 21 Which expression is equivalent? A. 2(10 + 4y – 7y – 19) B. 2(

Amanda [17]

Option D: $4(5+2y)-3(3y+7)$ is the correct answer.

Explanation:

The expression is $20+8 y-9 y-21$

Solving the expression, we have,

$-y-1$

Now, we need to find an expression equivalent to $20+8 y-9 y-21$

Option A: $2(10+4y-7y-19)$

Solving the expression, we have,

$\begin{aligned} 2(10+4 y-7 y-19) &=2(-9-3 y) \\ &=-18 y-6 y \end{aligned}$

From the result, the expression $2(10+4y-7y-19)$ is not equivalent to $20+8 y-9 y-21$

Option A is not the correct answer.

Option B: $2(10+4 y)-3(3 y-7)$

Solving the expression, we have,

$\begin{aligned} 2(10+4 y)-3(3 y-7) &=20+8 y-9 y+21 \\ &=-y+41 \end{aligned}$

From the result, the expression $2(10+4 y)-3(3 y-7)$ is not equivalent to $20+8 y-9 y-21$

Option B is not the correct answer.

Option C: $4(5+2y-5y-17)$

Solving the expression, we have,

$\begin{aligned} 4(5+2 y-5 y-17) &=20+8 y-20 y-68 \\ &=-12 y-48 \end{aligned}$

From the result, the expression $4(5+2y-5y-17)$ is not equivalent to $20+8 y-9 y-21$

Option C is not the correct answer.

Option D: $4(5+2 y)-3(3 y+7)$

Solving the expression, we have,

$\begin{aligned} 4(5+2 y)-3(3 y+7) &=20+8 y-9 y-21 \\ &=-y-1 \end{aligned}$

From the result, the expression $4(5+2 y)-3(3 y+7)$ is equivalent to $20+8 y-9 y-21$

Option D is not the correct answer.

8 0

3 years ago

In a right triangle, the measure of one acute angle is 26°. What is the measure of the other acute angle?

miss Akunina [59]

Sum of angles in a triangle = 180
180-90-26
=64

4 0

4 years ago

Read 2 more answers

I need help asap .....

NeX [460]

C is the correct answer

5 0

3 years ago

kenny6666 [7]

The cost to equip all the stations in the chemistry lab is calculated as: $393.75.

<h3>How to Calculate Total Cost?</h3>

In this scenario, we are given the following:

Total number of stations = 21 stations

Length of rubber tubing each of the stations in the chemistry lab needs = 5 feet

Total length of rubber tubing needed for all stations in the chemistry lab = 21 × 5 = 105 feet

Cost of 1 rubber tubing = $6.25 per yard

Convert 5 feet to yard:

1 yard = 3 feet

x yard = 5 feet

x = (5 × 1)/3

x = 5/3 feet.

So, the cost of 1 rubber tubing = $6.25 per 5/3

Cost of total length of tubbing needed = (105 × 6.25)/5/3 = (105 × 6.25) × 3/5

Cost of total length of tubbing needed = $393.75

Therefore, the cost to equip all the stations in the chemistry lab is calculated as: $393.75.

Learn more about the How to Calculate Total Cost on:

brainly.com/question/2021001

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6 0

2 years ago

Evaluate the function for x = –2a, if a = 3.<br> f(x)= -4x+7

wariber [46]

I got -17; hoped you liked it

7 0

3 years ago

If you multiply me by 5 and subtract 6 from me you get 14. what number am I.​

If you multiply me by 5 and subtract 6 from me you get 14. what number am I.