MATHEMATICS MIDDLE SCHOOL

Solve and check
2/3y =6
A.1/9
B.1/4
C.9
D.4

Answers

Answer 1
Answer: (2)/(3)y=6\ \ \ \ |divide\ both\ sides\ by\ (2)/(3)\ /multiply\ by\ (3)/(2)/\n\ny=6\cdot(3)/(2)\n\ny=(6)/(1)\cdot(3)/(2)\n\ny=(\not6^3\cdot3)/(1\cdot\not2_1)\n\ny=(3\cdot3)/(1\cdot1)\n\ny=(9)/(1)\n\n\boxed{y=9}\leftarrow answer\ \boxed{C}

check:\n\n/put\ the\ value\ of\ y=9\ to\ the\ equation\ (2)/(3)y=6/\n\n(2)/(3)\cdot9=6\n\n(2)/(3)\cdot(9)/(1)=6\n\n(2)/(\not3_1)\cdot(\not9^3)/(1)=6\n\n(2)/(1)\cdot(3)/(1)=6\n\n2\cdot3=6\n\n\boxed{6=6}\leftarrow TRUE
Answer 2
Answer:

(2)/(3) *y=6 \n \n y=6: (2)/(3) =6* (3)/(2) = (18)/(2) =9

So the answer is C. 9

2/3* 9=(2*9)/3=18/3= 6 (true)

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A math club has 40 members. The number of girls is 5 less than 2 times the number of boys. How many members are boys? How many members are girls?

Answers

15 girls and 25 boys

ASAP, pls I need help with these questions ​

Answers

Answer:

a) 2/5 x 900 = 360 hectares

b) 3/5th

c) 3/5 x 900 = 540

540 - 360 = 180

Farmer Richards needs to bring another 180 hectares under cultivation.

Solve. 2x + 4 < 5x + 3 A) x > 3 B) x < 3 Eliminate C) x > 1/3 D) x < 1/3Solve.

2x + 4 < 5x + 3


A)
x > 3


B)
x < 3
Eliminate

C)
x >
1
3


D)
x <
1
3

Answers

Answer:

1) C

Step-by-step explanation:

1) 2x + 4 < 5x + 3

3x > 1

x > ⅓

Simplify (8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)​

Answers

Answer:

4j^3 + 5j^2 + 7j - 1

Step-by-step explanation:

(8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)​

Distribute the -1 in front of the (4j^3+8j^2+7j-6)​

8j^3 - 3j^2 + 5 - 4j^3 + 8j^2 + 7j - 6

We can combine anything with the same exponent number that "j" is raised to

8j^3 - 4j^3 = 4j^3

-3j^2 + 8j^2 = 5j^2

7j is just 7j since there is nothing else with just j in it

5 - 6 = -1

Add these together

4j^3 + 5j^2 + 7j - 1 is our final answer

Which of the angels in the picture are vertical angles

Answers

Answer:

angles 2 and 3 are vertical angles

this is because they are opposing sides of the vertex while also congruent in size

Answer:

Angles 2 and 3

Step-by-step explanation:

What is one three fourths minus seven tenths

Answers





1.05, or 21/20

More detailed:
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