All categories

3 years ago

sara says. "if you subtract 14 from my number and multiply the difference by -4, the result is -80." What is Sara's number?

Mathematics

2 answers:

statuscvo [17]3 years ago

5 0

Answer:

Step-by-step explanation:

-80/-4=20+14=6

Semenov [28]3 years ago

5 0

Answer:

34

Step-by-step explanation:

We can solve this equation by giving Sara's number a variable.

Let it be x.

Then we solve by simply interpreting the problem step by step.

"If you subtract 14 from my number..."

x - 14

"...and multiply the different by -4..."

-4(x-14)

"...the result is -80"

-4(x-14) = -80

Now that we have our equation, we can solve for x.

1.) Use distributive property to expand.

-4x + 56 = -80

2.) Subtract 56 from both sides

-4x = -136

3.) Divide by -4

x = 34

Sara's number is 34

You might be interested in

Which combinations hold the same amount of liquid as a 14-cup jug?

ella [17]

Answer:

Step-by-step explanation:

hbjbmnbbbbbbbbbbbbbbbbbbbbbbbbbbbbhbbbbbbbbbbbbbbb

7 0

3 years ago

Which of the following figures has a length, width, and height?

rodikova [14]

Answer:

I believe

D. Pyramid

Is the answer I did it in 6th or 7th grade

Step-by-step explanation:

Square is flat so no height.

Line segment is a flat line so no height

point is a literal dot

pyramid is a 3d figure so it would have all of the attributes

We both helped right?

5 0

3 years ago

Read 2 more answers

A square garden is 12 feet long on each side. Janet needs to put a post at each corner. She also needs to put one every 3 feet o

adelina 88 [10]

12ft = 4 posts
4 x 4
=16 - 4
= 12
There is 4 post on each side but there is an overlap so you must take off 4 so there is no overlap
Therefore there are 12 posts

4 0

3 years ago

Simplify the expression. <img src="https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B1%2B%5Csqrt%7B3%7D%20%7D" id="TexFormula1" t

REY [17]

Answer:

Step-by-step explanation:

Rationalize the denominator by multiplying both denominator & numerator by the conjugate of the denominator.

Conjugate of the denominator 1 + √3 is 1 - √3

$\frac{6}{1+\sqrt{3}}=\frac{6(1-\sqrt{3})}{(1+\sqrt{3})(1-\sqrt{3})}\\\\=\frac{6(1-\sqrt{3})}{(1+\sqrt{3})(1-\sqrt{3})}\\\\=\frac{6(1-\sqrt{3})}{1^{2}-(\sqrt{3})^{2}}\\\\=\frac{6(1-\sqrt{3})}{1-3}\\\\=\frac{6(1-\sqrt{3})}{-2}\\\\=(-3)(1-\sqrt{3})\\\\=-3+3\sqrt{3}$

3 0

3 years ago

Write the equation in it's simplest form or as

allsm [11]

9514 1404 393

Answer:

2∛7

Step-by-step explanation:

Putting the expression in simplest form will factor cubes from under the radical.

$\displaystyle\sqrt[3]{56}=\sqrt[3]{2^3\cdot7}=\boxed{2\sqrt[3]{7}}$

7 0

2 years ago

sara says. "if you subtract 14 from my number and multiply the difference by -4, the result is -80." What is Sara's number?​

sara says. "if you subtract 14 from my number and multiply the difference by -4, the result is -80." What is Sara's number?