3 years ago

Simplify. 5 +8 X 2 – 10

Mathematics

1 answer:

sveticcg [70]3 years ago

4 0

Answer:

-104

Step-by-step explanation:

5+8=13

2-10=-8

13×-8=-104

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Write in standard notation. 6.12 x 103<br> 6,120<br> 612<br> 61,200<br> 61.2

maks197457 [2]

Answer:6120

Step-by-step explanation:

take the decimal in 6.12 and move it to the right three times and thats how I got the answer

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3 years ago

Dennis and Ivy share some sweets between them in the ratio 7:4 Dennis got 42 sweets. How many does ivy get

MrRa [10]

Answer:

$Ivy = 24$

Step-by-step explanation:

Given

$Dennis : Ivy = 7 : 4$

Required

Determine the amount of sweet Ivy gets when Dennis = 42

We have:

$Dennis : Ivy = 7 : 4$ and

$Dennis = 42$

Substitute 42 for Dennis in $Dennis : Ivy = 7 : 4$

$42 : Ivy = 7 : 4$

Convert to fraction

$\frac{42}{Ivy} = \frac{7}{4}$

Cross Multiply:

$Ivy * 7 = 42 * 4$

Divide through by 7

$\frac{Ivy * 7}{7} = \frac{42 * 4}{7}$

$Ivy = \frac{42 * 4}{7}$

$Ivy = 6* 4$

$Ivy = 24$

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3 years ago

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Answer:

Step-by-step explanation:

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dangina [55]

Answer:

32.4

Step-by-step explanation:

14 3/5 = 14.6

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