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2 years ago

1. In Suri's coin purse she has 6 dimes and

Mathematics

1 answer:

ollegr [7]2 years ago

3 0

Answer:

The ratios are not equal

Step-by-step explanation:

Let

x ----> the number of dimes

y ----> the number of quarters

we know that

 Suri's coin purse

x=6, y=4

The ratio of dimes to quarters is

$\frac{x}{y} =\frac{6}{4}$

 Martha's coin purse

x=5, y=3

The ratio of dimes to quarters is

$\frac{x}{y} =\frac{5}{3}$

Compare the ratios

$\frac{6}{4}=\frac{5}{3}\\6(3)=4(5)\\18\neq 20$

therefore

The ratios are not equal

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Two factors are multiplied and their product it 34.44. One factor is a whole number. What is the least number of decimal places

Tanya [424]

The answer is 2, because if a number is a whole number, for example 2, you must multiply it by a number with 2 decimals, in this case 17.77, to get 34.44 based on this example.

*There are some cases where this doesn't apply, I think, but it does apply for your question.

4 0

2 years ago

Read 2 more answers

HDTV screens usually have a width-to -height ratio of 16:9. Which screen dimensions are in the same proportion?

love history [14]

Answer:

4 feet by 3 feet

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

Please have a look at the attached photo.

My answer:

width-to -height ratio of 16:9

Let analyse all possible answers:

4 feet by 3 feet

16 divided by 4 is the same as 9 divided by 3 => it is true

28 inches by 21 inches

16 divided by 28 is different as 9 divided by 21 => it is wrong

48 centimeters by 27 centimeters

16 divided by 48 is different as 9 divided by 27 => it is wrong

26 inches by 19 inches

16 divided by 26 is different as 9 divided by 219=> it is wrong

We choose A.

Hope it will find you well.

7 0

2 years ago

Josh has $500 in his savings account. He deposits $25 into his savings account each month. He purchased home theater equipment f

zzz [600]

Answer:

B. 10 months

Step-by-step explanation:

The balance on the loan will be ...

b = 1600 - 80t . . . . . . where t is the number of months of payments

The balance in the savings account will be ...

s = 500 + 25t

The savings account balance will be at least as much as the loan balance when ...

s ≥ b

500 +25t ≥ 1600 -80t . . . substitute the account balance expressions

105t ≥ 1100 . . . . . . . . . . . . add 80t -500

t ≥ 1100/105 ≈ 10.48 ≈ 10

It will take Josh 10 months to have enough savings to pay the loan in full.

_____

Comment on rounding

IMO, it makes no sense to round down, as Josh will NOT have enough in 10 months. He will have enough after he makes one more payment of $80. At 10 months, the loan balance is $50 more than the savings balance. It will be 11 months before there is enough savings to pay off the loan.