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AnnyKZ [126]
2 years ago
11

Kate has a coin collection. She keeps 7 of the coins in a box which is only 5% of her entire collection.

Mathematics
1 answer:
Vadim26 [7]2 years ago
4 0

Answer:

She has 140 coins in total.

Step-by-step explanation:

Since 7 coins is only 5% of the entire collection, 7 coins=5%. 100% is the total. So first you need to divide 100 by 5 which is 20 (100÷5=20). Next, you need to multiply 20 by 7 (20×7=140) to find out how much coins she has in total.

Hope this helps you!

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7z2 5z4 d3 d8<br> I don't know how you are supposed to do it?
Serga [27]

Answer:

35 {z}^{6} {d}^{11}

Step-by-step explanation:

Assuming you are supposed to simplify:

7 {z}^{2}  \times 5 {z}^{4}  \times  {d}^{3}  \times  {d}^{8}

Then we need to apply the product rule of indices.

{a}^{m}  \times  {a}^{n}  =  {a}^{m + n}

So we multiply to get:

35 {z}^{2 + 4}  \times  {d}^{3 + 8}

We now simplify the exponents to get:

35 {z}^{6}  \times  {d}^{11}

Therefore the required product is

35 {z}^{6} {d}^{11}

3 0
3 years ago
What step do I do next ?
Svetach [21]
When it comes to dividing decimals, bear in mind that, first off you'd want to do away with the decimal point.

now, "you add as many zeros to the other term, as it has decimals", what the heck does that mean?

for example 2.135 ÷ 5

notice, the 2.135 has three decimals, namely three numbers to the right of the decimal point.

since 2.135 has three decimals, then what we do, we add three zeros to 5, AND do away with the decimal point, thus our division is really

2135 ÷ 5000, which is 0.427

now, if we had 2.135 ÷ 5.79

what we do is, since 2.135 has three decimals, we add three zeros to 5.79, and since 5.79 has two decimals, we add two zeros to 2.135, then our division is really

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which is about 0.3687392

anyhow, that said, check the picture below

5 0
3 years ago
Could you help me with this page
NeTakaya

5. area 0.75*2*0.75*2=2.25 m²

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8 0
3 years ago
Students at sunnyvale Middle School volunteered to work a 2-hour Shift at a car wash fundraiser. The table shows the number of p
Lana71 [14]

Answer:

the number of cars washed per person is not the same for each number of workers, so the relationship is not proportionalStep-by-step explanation:

3 0
3 years ago
Read 2 more answers
Answer ASAP
Talja [164]

Answer:

13 and 27

Step-by-step explanation:

y= x+14

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x+ x+14=40

2x+14=40

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so, 2x=26

26/2

=13

so, x=13 and

and y equal 40-13

y=27

3 0
2 years ago
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