3 years ago

Solve the equation for x

Mathematics

2 answers:

WARRIOR [948]3 years ago

6 0

Answer:

x = 5

Step-by-step explanation:

--- x - 9 = -7 add 9 both sides

--- x - 9 + 9 = -7 + 9

--- x = 2 multiply both sides by 5

5 * --- x = 2 * 5

2x = 10

x = 10 / 2

x = 5

Rasek [7]3 years ago

5 0

Answer:

the answer is 5

Step-by-step explanation:

2x/5 - 9 = -7

2x/5 = -7 + 9

2x/5 = 2

2x = 2 * 5

2x = 10

x = 10/2

x = 5

You might be interested in

Which shape is a continuous line of equal distance from its center?

natima [27]

A circle would be the answer

5 0

3 years ago

How to divide fractions with concrete models? PLEEASE I HAVE A TEST TOMORRW, I WILL GIVE FIRST ANSWER THAT IS SMART BRANLIEST

Leya [2.2K]

Answer:

So first, there is an acronym for the strategy, KFC.

°π°

Keep the first fraction. Ex, 4/5 ÷ 1/5

Flip the second fraction. Ex, 4/5 ÷ 5/1

Change symbol. Ex, 4/5 ÷ 5/1 turns into 4/5<em>x</em>5/1

8 0

3 years ago

A random sample of 133 people was taken from a very large population. Sixty-five of the people in the sample were females.The st

rjkz [21]

Answer: 0.0433

Step-by-step explanation:

Given: Sample size : n= 133

The number of females in sample = 65

Then the proportion of females : $P=\dfrac{65}{133}$

The formula to calculate the standard error of the proportion is given by :-

$S.E.=\sqrt{\dfrac{P(1-P)}{n}}$

$\Rightarrow S.E.=\sqrt{\dfrac{\dfrac{65}{133}(1-\dfrac{65}{133})}{133}}\\\\\Rightarrow\ \Rightarrow S.E.=0.0433444676341\approx0.0433$

Hence, the standard error of the proportion of females is 0.0433.

6 0

3 years ago

A manufacturer uses a mold to make a part in the shape of a triangular prism. The dimensions of this part are shown below.

tamaranim1 [39]

The complete question in the attached figure

we know that
[volume of a triangular prism]=[area triangular base]*[length]
[volume <span>of a triangular prism]=[(14.4*2.1)/2]*8.25
</span>[volume of a triangular prism]=124.74 mm³

the answer is 306

6 0

3 years ago

Question in photo, Please Help

quester [9]

The answer would be 28 feet, to get area you do length times width, 7 x 4 = 28

7 0

3 years ago

Read 2 more answers