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adelina 88 [10]
3 years ago
5

Solve the simultaneous equations by substitution 2 + y = 16 x = 2y + 1

Mathematics
1 answer:
Tema [17]3 years ago
7 0

Answer:

x=29, y= 14

Step-by-step explanation:

y=16-2(move the 2 over to isolate y.) y=14. now input 14 in the bottom equation. x= 2(14)+1, 2×14=28, 28+1=29. x=29, y=14

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the area of a square is A = s^2, where s is the length of one side of the square. what is the side length s for each square ? th
vlada-n [284]

Answer:

18

Step-by-step explanation:

324 = s^2 -->

sqrt324 = s -->

sqrt(2^2 * 9^2) = s -->

2*9 = s -->

18 = s

5 0
3 years ago
A newsboy purchases papers at 10 cents and sells them at 15 cents. However, he is not allowed to return unsold papers. If his da
o-na [289]

Answer: 8.700

Step-by-step explanation:

4 0
2 years ago
seal had a balance of negative $4 in his saving account after making a deposit he has $25 in his account what is the overall cha
siniylev [52]
He deposited $29, so a $29 dollar difference
6 0
3 years ago
The length of a pencil is measured with two rulers. Report the length of the pencil from each ruler with the proper number of di
Roman55 [17]

Answer

Length measured using Ruler A= 1.17 dm

Length measured using Ruler B=1.18 dm

Step by Step Explanation:

I have added the missing photograph which shows the length of pencil being measured with two rulers.

Ruler A has marking separated by 1 dm

Ruler B has marking separated by 0.1 dm

Length measured using Ruler A= 1.17 dm

(As we can see I have added the middle markers, we can see the tip of pencil is somewhere between 1 and 1.25, it is more than 1.125 but lesser than 1.25, it is somewhere around 1.2 and 1.125 dm, approximately equal to one half of 1.25 which is 1.125 with addition of one of the three halves of half of 1.125 which is 1.125+0.045 dm hence 1.17dm)

Length measured using Ruler B=1.18 dm

(we can see the tip of pencil is just before 1.2 dm, it is clear that the value is precisely 1.18 and not 1.19 dm)

<u><em>Tip:Always measure one more decimal than given by the ruler when unsure about the exact value</em></u>

6 0
3 years ago
If the sum of the first and third consecutive integer is 44, what are these three integers?
emmasim [6.3K]
Hello There!

x + x + 2 = 44
2x + 2 = 44
- 2          - 2
2x = 42
x = 21.

Numbers are 21, 22 and 23.

Hope This Helps You!
Good Luck :)
4 0
2 years ago
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