3 years ago

Try box be 1) Solve for m: 2m + 21 = 3 Help please…

Mathematics

1 answer:

Viktor [21]3 years ago

7 0

first step is to subtract 21 from both sides

2m+21-21=3-21

2m=-18

2m/2 and -18/2

m=-9

So the final answer is m=-9 (negative nine equals m)

You might be interested in

X2 - 11x = -30 {5} {6) (-6) {5, 6)

Elina [12.6K]

Answer:

the answer is in the picture

4 0

3 years ago

A typical marathon is 26.2 miles. Allan averages 12 kilometers per 1 hour when running in marathons. How long does it take for A

cluponka [151]

Answer:

3.5 hours

Step-by-step explanation:

Given: Distance= 26.2 miles

Speed= 12 km/h

First lets convert the unit of speed from kmh to mph.

Remember, 1 mile= 1.609 km

∴ For speed of 12 km/h= $\frac{12}{1.609}= 7.45\ mph$

Speed= 7.45 mph

Next, find time taken by Allan to complete a Marathon.

$Time= \frac{Distance}{speed}$

⇒ Time= $\frac{26.2}{7.45}$

∴ Time= 3.516 hours ≅ 3.5 h (nearest tenth)

∴ Allan took 3.5 hours to complete marathon.

8 0

4 years ago

2x - 11| + 6 = -5 What is it?

mezya [45]

Answer:

No solution

Step-by-step explanation:

The answer is no solution because an absolute value cannot equal or be a number.

3 0

3 years ago

Which equation is represented by the graph below?

Nataliya [291]

The y-intercept is at 6.
The slope of the line is 2/3.

The answer is y = 2/3x + 6, so the 3rd option is correct.

7 0

3 years ago

Read 2 more answers

I NEED HELP ASAP PLEASE!!!!!!

blondinia [14]

Answer:

3/4

Step-by-step explanation:

cross multiply: 8n=6

solve: n=6/8

simplify: n=3/4

6 0

3 years ago

Read 2 more answers