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
Dafna1 [17]
3 years ago
10

What is a-7=21 it’s for class obviously

Mathematics
2 answers:
arlik [135]3 years ago
8 0

Answer:

28

Step-by-step explanation:

7+21=28

a-7=21

Keith_Richards [23]3 years ago
8 0

Answer: a=28

Step-by-step explanation:

You might be interested in
A teacher puts five packages of craft paper into a cabinet each package has 80 sheets of paper what is the total number of sheet
aliina [53]

Answer:

C

Step-by-step explanation:

If we have 5 packages and each contains 80, we are basically doing 80+80+80+80+80 (5 TIMES) which is referred to as 80×5=400

7 0
2 years ago
Read 2 more answers
0.45 plus 9x equals 27
oee [108]

Answer:

x = 2.95

Step-by-step explanation:

<u>Step 1:  Convert words into an expression</u>

0.45 plus 9x equals 27

0.45 + 9x = 27

<u>Step 2:  Solve for x</u>

0.45 + 9x - 0.45 = 27 - 0.45

9x / 9 = 26.55 / 9

x = 2.95

Answer:  x = 2.95

7 0
3 years ago
Read 2 more answers
Write an equation that shows the equivalency between meters and gigameters.
Anastasy [175]
Below is an equation that shows the equivalency between meters andGigameters:


10 ^{9} m = 1 Gm


The  conversion factor should be used to convert from meters toGigameters should be:

\frac{1 Gm}{10 ^{9} m }
4 0
3 years ago
Find the slope of the line 2x-4y=2
FrozenT [24]
Get y by itself so subtract 2x from both sides. So next it would be -4y=-2x+2. To get y by itself divide both sides by -4. So then it would be y= -2/-4x +2/-4. They both reduce down to y=1/2x-1/2. So the slope is 1/2 because the formula y=mx+b
m=slope. Hope this helps! :)
7 0
3 years ago
Does y = 2x + 4 show direct variation?
Elza [17]

Answer:

no

Step-by-step explanation:

Direct variation is of the form

y = kx

This has a constant added

y = kx+b so it is not a direct variation

5 0
2 years ago
Read 2 more answers
Other questions:
  • Maxine hosted a dinner party at her favorite restaurant. She had to pay $12 per guest. The restaurant took $72 off the bill due
    6·2 answers
  • What is the mean of the age of the students if their ages are 7,9,8,8,8,8,7 and 9
    6·2 answers
  • My first number is -2, my fifth number is 26<br>What is my third number?<br>​
    6·2 answers
  • What is the distance -4 and 7 on a number line?
    13·1 answer
  • A portfolio consisting of four stocks is expected to produce returns of minus9%, 11%, 13% and 17%, respectively, over the next f
    13·1 answer
  • Margo has $80 to spend she wants to buy as many DVDs as possible after buying aCD that cost $18 each at most what is the greates
    7·1 answer
  • An equation of a line parallel to y=-9/5x-3 and goes through (1,7)
    15·1 answer
  • WHAT IS 5,350 DIVIDED BY NOTHING =5.35
    14·2 answers
  • What is an easy method to workout 35% of 70
    13·2 answers
  • What is the ratio for the volumes of two similar spheres, given that the ratio of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!