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3 years ago

Write the subraction problem 604-357. describe how you will subtract to find the difference

Mathematics

2 answers:

Mekhanik [1.2K]3 years ago

6 0

Answer:

Step-by-step explanation:

Simora [160]3 years ago

4 0

You have to borrow and regroup in your problem. You can't do 4 minus 7, so you borrow 1 from the number to the left, which is 0, so we go to the next number on the left, 6.

6 becomes 5 and the 4 becomes 14. The 0 becomes a 9, too. Now you can subtract. 14 minus 7 is, well, 7. 9 minus 5 is 4. 5 minus 3 is 2.... and you get your answer: 247.

Hope this helped you.. but if you need help, let me know!

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This is due in 10 minutes please help me

valkas [14]

Given:

The rate of interest on three accounts are 7%, 8%, 9%.

She has twice as much money invested at 8% as she does in 7%.

She has three times as much at 9% as she has at 7%.

Total interest for the year is $150.

To find:

Amount invested on each rate.

Solution:

Suppose x be the amount invested at 7%. Then,

The amount invested at 8% = 2x

The amount invested at 9% = 3x

Total interest for the year is $150.

$x\times \dfrac{7}{100}+2x\times \dfrac{8}{100}+3x\times \dfrac{9}{100}=150$

Multiplying both sides by 100, we get

$7x+16x+27x=15000$

$50x=15000$

Dividing both sides by 50, we get

$x=\dfrac{15000}{50}$

$x=300$

So, the amount invested at 7% is $300$ .

The amount invested at 8% is

$2(300)=600$

The amount invested at 9% is

$3(300)=900$

Hence, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.

7 0

3 years ago

A 3- pack of boxes of juice costs $1.12. A 12-pack of boxes costs $4.38. A case of 24 boxes costs$8.68.Which is the best buy?

just olya [345]

First, you divide the price by the amount of units in the pack. This is how you find how much one unit is worth in that pack. So for the first pack you divide 1.12 by three, and then you have .37333 repeating, which is about 38 cents. Next is the second pack, where we divide 4.38 by 12 which is .365, which is about 37 cents. The last pack is 8.68 divided by 24 which is .361, or about 36 cents. This means that the 24 pack is the best buy.
In real life you should also consider which would be too much for you or not enough. For example, you might not even need 24 units of juice. You might only need 12 so you don't have too much extra. But hey, this is just a math problem ;)

8 0

3 years ago

Which of the following will be equal to 1⁄4?

docker41 [41]

Answer:

C - 100% of 0.25

Step-by-step explanation:

This answer is basically the same as 25% of 100, just worded differently to confuse you.

25 is 1/4th of 100, so this should be the answer. :)

If you're curious of what the other answers amount to:

One hundredth of 250 = 2.5

50% of 5 = 2.5

40% of 1 = 0.4

6 0

3 years ago

When Joseph finished packing his backpack, it had a mass of 5 kilograms. What was the mass of the backpack in grams

worty [1.4K]

There is 1000 grams in a kilogram so he had a mass of 5,000 grames in his bag

7 0

3 years ago

4 times a number is decreased by 9, the result is the same as when 15 is added to twice the number. find the number

igor_vitrenko [27]

Answer:

Step-by-step explanation:

4*x-9=2x+15

4x-9=2x+15

-2x -2x

2x-9=15

2x=24

x=12

5 0

2 years ago