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algol [13]
3 years ago
9

Use compatible numbers to estimate the quotient 63.5÷5

Mathematics
1 answer:
Leto [7]3 years ago
8 0
63.5 divided by 5 is 12.7.      
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Please help me with 1-8 thank you :)
Mekhanik [1.2K]
-7 is the answer is the antithesis
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3 years ago
Help thank u so much thanks
Jlenok [28]

7.5, 7.058, 8.508,

8.58

Step-by-step explanation:

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3 years ago
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Is the sequence 7, 9, 11, 13,.. A)arithmetic B)geometric C) both D)netheir
ladessa [460]
This sequence is arithmetic, because each number is the last number plus two.
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3 years ago
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Cole has 5 times as many pencils as
Nataly [62]

Answer:

Cole has 15 pencils.

Step-by-step explanation:

First, we have the equation c + o =18, c representing cole, and o representing connor.

From there, we get 5o=c

Using substitiution, we get o=3

5(3)=15

15+3=18

8 0
2 years ago
Kristen has 64 coins in her bank. She has $9.25 in dimes and quarters. How many dimes and quarters does she have?
Stella [2.4K]
D= # of dimes
q= # of quarters

QUANTITY EQUATION:
d + q= 64

COST EQUATION:
0.10d + 0.25q= $9.25


STEP 1:
multiply quantity equation by -0.10 to be able to eliminate the d term in step 2

(-0.10)(d + q)= (-0.10)(64)
-0.10d - 0.10q= -6.40


STEP 2:
add equation from step 1 to cost equation to eliminate the d term and solve for q

Add
0.10d + 0.25q= $9.25
-0.10d - 0.10q= -6.40

0.15q= 2.85
divide both sides by 0.15

q= 19 quarters


STEP 3:
substitute q value in step 2 into either original equation to find d value

d + q= 64

d + 19= 64
subtract 19 from both sides

d= 45 dimes


CHECK:
0.10d + 0.25q= $9.25
0.10(45) + 0.25(19)= 9.25
4.50 + 4.75= 9.25
9.25= 9.25


ANSWER: There are 45 dimes and 19 quarters.

Hope this helps! :)
7 0
3 years ago
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