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
vladimir2022 [97]
3 years ago
9

Algebra:y+7-2=21so confused, can someone help?​

Mathematics
2 answers:
aleksandrvk [35]3 years ago
8 0

Answer:

y+7-2=21

y+5=21

y+21-5

y=16

Step-by-step explanation:

k0ka [10]3 years ago
5 0

Answer:

Step-by-step explanation:

y+7-2=21

y + 5 = 21

y = 21 - 5

y = 16

You might be interested in
Select all ratios equivalent to 12:6.
melomori [17]
10:5 is the answer hope u get a good grade
6 0
3 years ago
75/5-(4-1)^2. PLZZZZ ANSWER THIS
tia_tia [17]
75/5-(4-1)^2

75 / 5 = 15

15-(4-1)^2

15-3^2

 answer: 6

3 0
3 years ago
A dump truck brought 1⁄3 of a ton of rock on the first trip, 1⁄2 of a ton on the second trip, but on the third trip, had to take
Allisa [31]

Answer:

1/30 of a ton

Step-by-step explanation:

Write this as an expression:

1/3 of a ton and 1/2 of a ton were taken to the site.

4/5 of a ton were remove from the site.

Amount of a ton at the site  =   \frac{1}{3}+ \frac{1}{2}- \frac{4}{5}

Solve the equation by finding <u>common denominators</u> (when the bottom numbers are the same).

(\frac{1}{3}+ \frac{1}{2})- \frac{4}{5}       Focus on the first part. The least common multiple (LCM) of 3 and 2 is "6", which will become the denominator.

For <u>1/3 to become ?/6</u>, multiply top and bottom by 2.

For <u>1/2 to become ?/6</u>, multiply top and bottom by 3.

(\frac{2}{6}+ \frac{3}{6})- \frac{4}{5}

Now we can add the numerators together over the same denominator.

\frac{5}{6}- \frac{4}{5}

Do the same thing as before and change the denominators. The LCM of 6 and 5 is "30".

For <u>5/6 to become ?/30</u>, multiply top and bottom by 5.

For <u>4/5 to become ?/30</u>, multiply top and bottom by 6.

\frac{25}{30}- \frac{24}{30}

Subtract the numerators:

\frac{1}{30}                  Answer in tons

Therefore there was 1/30 of a ton of rock left at the construction site.

7 0
3 years ago
Read 2 more answers
Find x and y? <br>i dont want to cheat but can anyone tell me how to do it or how to start out ​
mash [69]

Answer:

x is 13

y is 39

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
I have to estimate 9,105-4031 and im soo confused! Help me plss
balandron [24]

9105-4031= 5074

Step-by-step explanation:

please mark me as branliest

7 0
3 years ago
Read 2 more answers
Other questions:
  • carl has 42inches of ribbon &amp; tino has 2.5 feet of rubbon.whats tge total lengh of rubbon the three friends have in inches,f
    15·1 answer
  • -29 = 5w + 6 - 12w. solve for w
    11·2 answers
  • Help me with everything plz
    6·1 answer
  • Write an equivalent expression for 4.5x(2 - 6)
    12·2 answers
  • Denise divided 1/2 pound of butter into 4 equal parts .How much butter was in each part?
    12·2 answers
  • -4x +39 &gt; -29 what is the answer for this question
    8·1 answer
  • The area of a square is 9 sq. cm. One side length is 3 cm. What is the other side length?
    8·2 answers
  • A basketball player made 5 baskets during a game. Each basket was worth either 2 or 3 points. How many different numbers could r
    7·1 answer
  • Anyone know the answer to this?
    10·1 answer
  • PLZ Help Urgent. 15 POINTS, BRAINLY Guaranteed.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!