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Burka [1]
3 years ago
14

R1 - Writing and using formulae

Mathematics
1 answer:
svetlana [45]3 years ago
8 0

Answer:

im trying to do a challenge because this kid deleted all my answers

Step-by-step explanation:

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Look at the question in the picture pls I need help
Lena [83]

Step-by-step explanation:

Let the painting's width be w inches and length be l inches.

w + 6 = 2l

w = 2l - 6 --(1)

2w + 2l = 84 --(2)

sub (1) into (2):

2(2l - 6) + 2l = 84

2l - 6 + l = 42

3l = 48

l = 16

when l = 16, w = 2(16) - 6 = 26

area of painting = lw = 16 x 26 = 416square inches

Therefore, only statements 1, 3 and 5 are true

Topic: Algebraic equations + Simultaneous linear equations

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

8 0
3 years ago
Des makes 4 trays of granola bars.each tray holds 8 bars how many granola bars dose des make? Choose a strategy to solve.use num
iris [78.8K]
The answer is 32.  You have four trays each have 8 bars so multiply 8 and 4.

8*4=32

6 0
3 years ago
Which two points on the number line represent numbers that can be combined to make zero?
AnnZ [28]

Answer:

option (D) is the right answer

6 0
3 years ago
THIS IS FOR 18 POINTS!!!
aniked [119]
The equation is
(X + 3) + (x + 3 ✖️3)=44
Ethan had 12 baseballs.
Steps:
1. You do 44 dived by 3 which is 14.66 repeating
2. You subtract 3
2. You get 11.66 repeating
3. You round up to 12
8 0
3 years ago
Read 2 more answers
5x - 4y = 17<br> 6x + 4y = -6
Otrada [13]

Answer:

x = 14.2 y=15.

Step-by-step explanation:

6 0
3 years ago
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