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Keith_Richards [23]
3 years ago
13

If the output of the equation f(x)=3x+7 is -2 what is the input and how do you solve it?

Mathematics
1 answer:
Kisachek [45]3 years ago
5 0

-2 = 3x + 7

subtract 7 from both sides

-9 = 3x

divide by 3

-3 = x

check

-2 = 3 (-3) + 7

-2 = -9 + 7

-2 = -2

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A company makes baseball cards in packs of 10, boxes of 100, and cases of 1,000. A store orders a total of 15,470 cards. How can
Wewaii [24]

A company makes baseball cards in packs of 10, boxes of 100, and cases of 1,000. A store orders a total of 15,470 cards. How can the company fill the order in the exact amount?

Answer: The company can fill the order in exact numbers as:

15 cases, 4 boxes, 7 packs

15 cases contain 15 \times 1000=15000 cards

4 boxes contain 4 \times 100 =400 cards

7 packs contain 7 \times 10 = 70 cards

Therefore, the total cards are:

15000 + 400 + 70 = 15,470

4 0
4 years ago
Plz give me the right answer I really need help and will give you brainlist plz.
jonny [76]

3(-2x-1)=2(x+5)

-6x-3=2x+10

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x=-13/8

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8 0
3 years ago
Read 2 more answers
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Inessa05 [86]

In any rhombus, the four sides are the same length.

Because of this, we know that

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Furthermore, AC = AC due to the reflective property

Those three facts then allow us to prove triangle ACD is congruent to triangle ACB through the SSS congruence property. Then from CPCTC, we then know that  angle DAC = angle BAC,  which is enough to show that AC bisects the angle shown. The term "bisect" means "cut in half".

4 0
3 years ago
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AURORKA [14]

Answer:

Step-by-step explanation:

she made an error in step 4.

it should be add 13 to both sides.

or        +13         +13

on both sides.

3 0
3 years ago
A rectangular prism with a avolume of 6 cubic units is filled with cubes with side lengths of 1/2 unit. How many 1/2 units does
nadya68 [22]

Answer:

48 cubes

Step-by-step explanation:

<u><em>The complete question is</em></u>

A rectangular prism with a volume of 6 cubic units is filled with cubes with side lengths of 1/2 unit. How many 1/2 unit cubes does it take to fill the prism?

step 1

Find the volume of the cube

The volume of the cube is equal to

V=b^{3}

where

b is the length side of the cube

we have

b=\frac{1}{2}\ units

substitute

V=(\frac{1}{2})^{3}

V=\frac{1}{8}\ units^{3}

step 2

To find out how many half-unit cubes are needed to fill the prism, divide the volume of the prism by the volume of the cube

6:\frac{1}{8}=48\ cubes

7 0
3 years ago
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