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shusha [124]
3 years ago
8

Someone please help me with this

Mathematics
1 answer:
Slav-nsk [51]3 years ago
7 0
So first we need to find out how many days we're looking at. The equation we need to use is ?x5=45 to which the answer is 9.
Now that we know the amount of days we simply multiply. 20x9=180

Therefore Preston has spent 180 minutes reading or 3 hours total
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Simplify each expression to lowest terms.
Afina-wow [57]

1.) 2a - 4b + 3ab -5a + 2b

= 3ab -3a -2b

2.) 4(2x+1)-3x

= 8x+4 -3x

= 5x + 4

3.) 4(p-5) +3(p+1)

= 4p-20 + 3p+3

= 7p -17

4.) 6(p+3q) - (7 + 4q)

= 6p+18q -7 -4q

= 6p + 14q -7

5.) 4rs -2s -3(rs +1) -2s

= 4rs -4s -3rs -3

= rs -4s - 3

Must click thanks and mark brainliest

7 0
3 years ago
Calculate 15% of 80 kg?
Masja [62]

Answer:

12

Step-by-step explanation:

%100 of it makes 80 then %15 must be 12

7 0
3 years ago
Read 2 more answers
Please help thank you very much.
Sauron [17]
It was reflected on y = 2
3 0
4 years ago
A series of equal quarterly payments of $10,000 for 15 years is equivalent to what future worth amount at an interest rate of 6%
kogti [31]

Answer:

  $976,578.71

Step-by-step explanation:

We assume the deposits are made at the <em>beginning</em> of each quarter. The quarterly interest rate is 6%/4 = 1.5%. The number of quarterly payments is 15×4 = 60. The future value of an annuity due is ...

  A = P(1+r)((1+r)^n -1)/r

where r is the quarterly interest rate, n is the number of payments, and P is the payment amount.

  A = $10000(1.015)(1.015^60 -1)/.015 ≈ $976,578.71

The future value is $976,578.71.

6 0
4 years ago
Alicia buys a 5 pound bag of rocks for fish tank she uses 1 1/8 pounds for a small fish bowl . How much is left ?
telo118 [61]
She has 3 and 7/8 left
6 0
4 years ago
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