1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nadya [2.5K]
3 years ago
13

What re the answers to 20-30

Mathematics
1 answer:
BARSIC [14]3 years ago
7 0

Answer:

20.

m =  -52

22.

x=13

24.

a=-90

26.

n=-2

28.

a=9

30.

m=-10

Step-by-step explanation:

20. m/4=-13

m = -13*4 = -52

22. -143=-11x

x=-143/-11 =13

24. -5=a/18

a=-5*18= -90

26. n-8=-10

n=--10+8

n=-2

28. a+11=20

a=20-11

a=9

30. 18+m=8

m=8-18

m=-10

You might be interested in
Evaluate the following expression, when n=-3 and r=-8<br> −5 + 3(−2r + 4n) <br> Pease answer ASAP
Hunter-Best [27]

Answer:

-8

Step-by-step explanation:

Given that,

n = -3

r = -8

Now we have to find the value of the given expression.

For that, you have to replace n and r with ( -3 ) and  ( -8 ) respectively.

Let us solve now.

−5 + 3 ( −2r + 4n )

-5 + 3 ( -2 × -8 + 4 × -3 )

-2 ( 16 - 12 )

-2 × 4

-8

Let me know if you've any other questions. :-)

- Hi1315

3 0
2 years ago
What is the solution for -10 &lt; x - 9?
evablogger [386]

- 10 < x - 9
ANSWER
x >  - 1
7 0
2 years ago
Read 2 more answers
PLS HELP ME U DONT HAVE TO SHOW UR WORK
vladimir2022 [97]

-9...................

7 0
2 years ago
What is the unit rate $9.99 for 10 lbs
Fantom [35]

Answer:

$.999 for 1 pound

Step-by-step explanation:

If you divided both sides by 10. So 10/10= 1. 9.99/10= 0.999

5 0
3 years ago
In the pulley system shown in this figure, MQ = 30 mm, NP = 10 mm, and QP = 21 mm. Find MN.
ankoles [38]
<h2>Answer:</h2>

\boxed{\overline{MN}=37.96}

<h2>Step-by-step explanation:</h2>

For a better understanding of this problem, see the figure below. Our goal is to find \overline{MN}. Since:

\angle MRS=\angle MQP=90^{\circ} \\ \\ \overline{MQ}=\overline{MR}=30mm

and \overline{MN} is a common side both for ΔMRN and ΔMQN, then by SAS postulate, these two triangles are congruent and:

\overline{RN}=\overline{QN}

By Pythagorean theorem, for triangle NQP:

\overline{QN}=\sqrt{\overline{NP}^2+\overline{QP}^2} \\ \\ \overline{QN}=\sqrt{10^2+21^2} \\ \\ \overline{QN}=\sqrt{541}

Applying Pythagorean theorem again, but for triangle MQN:

\overline{MN}=\sqrt{\overline{MQ}^2+\overline{QN}^2} \\ \\ \overline{MN}=\sqrt{30^2+(\sqrt{541})^2} \\ \\ \boxed{\overline{MN}=37.96}

3 0
3 years ago
Other questions:
  • What is the value of log Subscript 4 Baseline 16?
    8·1 answer
  • Without solving,would 1.98 divided by 0.51 be closer to 4 or 5?Explain.
    15·2 answers
  • I need to find the derivative of this equation
    12·1 answer
  • A culture of 10 bacteria is started, and the number of bacteria will double every hour. In about how many hours will there be 3,
    15·1 answer
  • 8. Parallel to the line y = 2x + 5 and contains the
    11·1 answer
  • If Wendell creates a scale drawing using the scale 1 inch to 10 feet, what will the dimensions of the deck in the scale drawing
    12·1 answer
  • This pie chart shows the number of books a bookstore sold in four months.What percentage of all the books that were sold in thes
    5·1 answer
  • Need help asap please!!
    13·1 answer
  • What's 2/9 rounded to the nearest hundredth?
    5·1 answer
  • Betty makes 40 cupcakes per hour to find the number of cupcakes baked in h hours use the equation f(h)=40 evaluate f(5) and expl
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!