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2 years ago

-28 + 2x = -18 x=? Solve for x

Mathematics

2 answers:

Novay_Z [31]2 years ago

7 0

Answer:

Step-by-step explanation:

2 x 5 = 10

-28 + 10 = -18

so the answer is 5

SpyIntel [72]2 years ago

5 0

Answer:

x = 5

Step-by-step explanation:

-28 + 2x = -18

-18 + 28 = 10 / 2 = 5

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C. What is f (-5)?<br> When the function is f(x) =-3x+7

bazaltina [42]

Answer:

f(-5) = 22

Step-by-step explanation:

f(x) =-3x+7

Let x = -5

f(-5) =-3*-5+7

= 15 +7

=22

5 0

3 years ago

Hall and Mindy are playing a guessing game. Hall tells Mindy: ""The difference between 17 and the square root of my mystery numb

cestrela7 [59]

Answer:

The possible number that Hall could be thinking of is 144.

Step-by-step explanation:

Difference between 17 and the square root of my mystery number

This is represented by:

$17 - \sqrt{x}$

is 5

Then:

$17 - \sqrt{x} = 5$

What are two possible numbers that Hall could be thinking of?

We have to solve the equation, for x. So

$17 - \sqrt{x} = 5$

$\sqrt{x} = 12$

$(\sqrt{x})^2 = (12)^2$

$x = 144$

The possible number that Hall could be thinking of is 144.

5 0

3 years ago

Write 46 over 74 in simplest form

deff fn [24]

$\hbox{The GCF \rightarrow2}$

$\frac{46\div2}{74\div2} \\ \\ \bold {\boxed{{\pmb{ \frac{23}{37} }}}}$

3 0

3 years ago

What is 28% as a fraction

marysya [2.9K]

Percent means parts out of 100
28%=28/100=14/50=7/25

3 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 46in and the diagonal is 17 in

dmitriy555 [2]

Answer + explaination

p=2*(L+l)=46

L+l=46:2

L+l=23

(L+l)^2=529

(L^2+l^2)+2l*L=529

D= V L^2+l^2= 17

L^2+l^2=289

so 289+2l*L=529

2l*L=529-289=240

l*L=240:2

A=120

4 0

2 years ago