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zhannawk [14.2K]
3 years ago
7

What is the answer to this. 27-(7x3)

Mathematics
2 answers:
Soloha48 [4]3 years ago
7 0
6, because you do the parentheses first because of order of operations, and then you subtract that from 27
Hitman42 [59]3 years ago
4 0
So parentheses first then subtract that answer from the 27 7×3=21. 27-21=6
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The answer to a,b and c
GuDViN [60]

Answer:

16/45; 4/45; 1125

Step-by-step explanation:

Since you know that 4/9 and 1/5 are used, make them common denominators. So 4/9 would turn into 20/45 and 1/5 would be 9/45. It results in 29/45, but that is the amount spent, so you would subtract 45-29/45, resulting in 16/45. For B, you know that she spent 3/4 of the savings, so you know that 1/4 is not being spent. So use 1/4 multiplied by 16/45 from part A to get 4/45. For C, you know that 4/45 is $100, so I multiplied 45x100 to get 4500 and then divided by 4 to get 4500/4.

8 0
3 years ago
G(a) = 3^3a-2 . Find g(1)
OleMash [197]
Sub 1 for a

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5 0
3 years ago
Find the HCF of terms and factorise: 20x3 – 40x2 + 80x​
sergiy2304 [10]

Answer:

The largest factor that can be pulled out of that expression is 20x, giving you 20x(x² - 2x + 4)

Step-by-step explanation:

20x³ - 40x² + 80x

= 20x(x² - 2x + 4)

6 0
3 years ago
3 percent of 420 is what ?
Alenkasestr [34]
Hi there! The answer is 12.6


First we need to change the percentage into a decimal. To convert this percentage, we have to divide it by 100.

3\% = 0.03


Hence, to find 3 percent of 420, we must multiply 420 by 0.03. We get the following:

3\% \times 420 = 0.03 \times 420 = 12.6

~ Hope this helps you!
5 0
3 years ago
Read 2 more answers
The distance a spring will stretch varies directly with how much weight is attached to the spring if a spring stretches 11 inche
Studentka2010 [4]

Answer:

the weight that attached to the spring is 9.5 inches

Step-by-step explanation:

The computation is shown below:

inches per pound is

= 11 inches ÷ 75 pounds

Now for 65 pounds, it would be

=  11 inches ÷ 75 pounds × 65 pounds

= 9.5 inches

Hence, the weight that attached to the spring is 9.5 inches

The same is relevant and considered

4 0
3 years ago
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