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kolbaska11 [484]
3 years ago
8

Simplify this expression 21z-6z+13 15z+

Mathematics
1 answer:
NeX [460]3 years ago
7 0

Answer:

30z+13

Step-by-step explanation:

i think this is right

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Solve the equation below. SHOW ALL WORK!!!<br><br> −3(y + 2) = 21
Maurinko [17]

Answer:

y=-9

Step-by-step explanation:

-3(y+2)=21

1st Open parenthesis

-3y-6=21

+6       +6

-3y=27

/-3    /-3

y=-9

6 0
3 years ago
PLEASE HELP AND HURRY
kogti [31]

Here the given expression is

y =(\frac{3}{4})^x

We need to find the value of y when x =3 . So we substitute the value of x in the given expression.

y =(\frac{3}{4})^3 = \frac{27}{64} =0.4

So when x=3, y=0.4 and that's the required answer.

6 0
3 years ago
The numbers of students in the four
Ludmilka [50]

The total number of students in the four classes is 100 students.

<h3>How to compute the value?</h3>

From the information, the numbers of students in the four sixth-grade classes at Northside School are 26, 19, 34, and 21.

Therefore, the total number of students will be:

= 26 + 19 + 34 + 21

= 100

Therefore there are 100 students.

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brainly.com/question/24644930

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8 0
2 years ago
Justin needs 9 pieces of rope that are
maria [59]

Answer:

no.

Step-by-step explanation:

half of 9 ft is 4.5 ft, 9 + 4 and 1/2 is 13 1/2

7 0
3 years ago
Kris is 12 feet tall and casts a shadow 8 feet long. At the exact same time, a statue casts a shadow 24 feet long. What is the h
Artyom0805 [142]
16 feet

12×2=24
8×2=16
8 0
3 years ago
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