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Sidana [21]
3 years ago
10

The hospital spent 8^5 dollars on a new medical equipment this year. Last year, they spent 8^7 dollars. How many times more did

they spend last year than this year?
Mathematics
1 answer:
Naddik [55]3 years ago
5 0

Answer:

64 times

Step-by-step explanation:

we know that

To find out how many times more did they spend last year than this year, divide the amount spent last year by the amount spent this year

Remember that

When divide two exponents with the same base, you keep the base and subtract the powers.

we have

\frac{8^7}{8^5}=8^{(7-5)}=8^{2} =64\ times

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Lance has 3 time as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?
Rufina [12.5K]

Answer:

21 pencils for Nick and 63 pencils for Lance

Step-by-step explanation:

  • Lance is said to have 3 times the pencils Nick has.
  • Let's keep the number of pencils Nick has as x.
  • If Nick has x pencils that means Lance has 3x pencils.
  • The total number of pencils present is 84.

Now let's make an equation out of the information above:

3x + x = 84

Now solve for x.

3x + x = 84

4x = 84

x = 84/4

x = 21

So Nick has 21 pencils

Now for Lance:

3x

3 * (21) = 63

So Lance has 63 pencils

63 + 21 = 84 pencils

8 0
3 years ago
Dons signature coffee blend is 60% dark roast and 40% light roast. He has 10 kg of blend A, which is 80% dark roast and 20% ligh
astraxan [27]

Answer

Find out the how many kilograms of blend A will don need to use to make 10 kg of his signature blend .

To proof

As given

Dons signature coffee blend is 60% dark roast and 40% light roast.

He has 10 kg

60 % is written in the decimal form

= \frac{60}{100}

= 0.6

40 % is written in the decimal form

= \frac{40}{100}

= 0.4

Now 60% dark roast of  10 kg = 0.6 ×10

                                                 = 6 kg

Now 40% of  10 kg = 0.4 × 10

                               = 4 kg

As given

He has 10 kg of blend A, which is 80% dark roast and 20% light roast  i.e 80% of the 6kg is dark roast and 20% of the  4kg is light roast .

80% is written in the decimal form

= \frac{80}{100}

= 0.8

80% of the 6kg is dark roast = 0.8 × 6

                                                = 4.8 kg

20% is written in the decimal form

= \frac{20}{100}

= 0.2

20% of the 4kg is light roast = 0.2 × 4

                                               = .8kg

Total kilograms of blend A will don need to use to make 10 kg of his signature blend =  4.8 kg + .8 kg

                          = 5.6 kg

Hence proved




 


8 0
3 years ago
Round the nearest hundredth. 53.789
hammer [34]

Answer: 53.79

Step-by-step explanation:

3 0
3 years ago
Can you slove this please​
Ket [755]

Answer:

y=85°

p=100°

Step-by-step explanation:

Corresponding Angles Theorem

Alternate Exterior Angles Theorem

7 0
3 years ago
Okay i am begging all of the math wizards on brainly to help me. it is end of the semester for me and im trying so hard not to f
Travka [436]

Answer:

Ok its pretty straight forward

So for every x its 1

And every y its 4/5

To make life simpler lets just make 4/5 into a whole number

So we can make it into 20/5 which equals 4

To get to 20/5 we multiply 4/5 by 5

So we multiply the x by 5 too

We’d get (5,5)

So you can plot that

And the lines should automatically plug in a different point

You can plug it into negatives

-5, -5

so something between those lines

Like i dontt get how lines work here it Make sure its on the 5,5

I can’t think of an equation but I guess

5=m5

In the Format  Y=mx (yes no y intercept because its a direct proportion formula)

Or you can use the format

y/x=m

5/5=m

Or if they suggest it in a y intercept formula

y-mx+b

just plug in like y with 5 and the x with 5.

You can also use the plot (10,8) still works :)

If I’m worng I’m sorry the question is weird and I’m assuming they asking you about Proportional/direct relationships

5 0
3 years ago
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