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insens350 [35]
3 years ago
6

LAST QUESTION ON MATH TEST. HELP

Mathematics
1 answer:
Feliz [49]3 years ago
7 0

Answer:

its C

Step-by-step explanation:

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In parallelogram ABCD, the length of BC=3x-1, CD=2x, and AD=x+5. Find the perimeter of ABCD
yarga [219]

Answer:

Step-by-step explanation:

BC=AD

3x-1=x+5

3x-x=5+1

2x=6

x=3

BC=3×3-1=8

CD=2x=2×3=6

perimeter=2(8+6)=2(14)=28

6 0
3 years ago
Ryan works at at the donut shop where he makes $10.25 per hour . He also works part time at the school bookstore where he makes
SCORPION-xisa [38]

Answer:

6 hours

Step-by-step explanation:

Let

x----> the number of hours worked at the donut shop

y----> the number of hours worked at the school bookstore

we know that

x+y=20

x=20-y -----> equation A

10.25x+8.75y=196 -----> equation B

Substitute equation A in equation B and solve for y

10.25(20-y)+8.75y=196

205-10.25y+8.75y=196

10.25y-8.75y=205-196

1.5y=9

y=6 hours at the school bookstore

7 0
3 years ago
After polling a class of 24 students by a show of hands, you find that 9 students play soccer and 21 students play basketball. g
MArishka [77]
The answer is 6 because 21+9=30 and 30-6=24 and 24 is the number of students in the class.
7 0
3 years ago
A shop buys pairs of trainers for £20 each. They sell them to make a 30% profit on each pair. What is the selling price of the t
Alexxx [7]

Answer:

60 dollars i think

Step-by-step explanation:

3 0
3 years ago
Are theese rational<br><br><br>-3/8 +3/5
nekit [7.7K]

Answer:

The sum is rational.

Step-by-step explanation:

-3/8 is a rational number  (the ratio of 2 integers)

3/5 is a rational number  (the ratio of 2 integers)

When you add 2 rational numbers, you get a rational number.

3 0
3 years ago
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