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Nat2105 [25]
3 years ago
12

Easy 5 If 3x + 5y = 15 and x – 2y = 10, what is the value of 2x +7y?

Mathematics
1 answer:
Dahasolnce [82]3 years ago
5 0

Answer:

5

Step-by-step explanation:

dont really understand why you answered your own question?

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What is the value of ​2×[34−5×(3+1)]​ ?
spayn [35]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{28}}}}}

Step-by-step explanation:

Use BODMAS rule :

Bracket , Of , Division , Multiplication , Addition , Subtraction

\sf{2 \times [ 34 - 5 \times (3 + 1) ] }

Add the numbers : 3 and 1

\dashrightarrow{ \sf{2 \times [ 34 - 5 \times 4 ] }}

Multiply the numbers : 5 and 4

\dashrightarrow{ \sf{2 \times [ 34  - 20 \: ]  }}

Subtract 20 from 34

\dashrightarrow{ \sf{2 \times 14}}

Multiply the numbers : 2 and 14

\dashrightarrow{ \sf{28}}

Hope I helped!

Best regards! :D

4 0
3 years ago
12 y − 18 6 = 4 y + 3 12 y - 18 6 = 4 y + 3
Burka [1]

Step-by-step explanation:

I didn't understood thr question and I'm pretty sure that u made a mistake while writing it

3 0
3 years ago
The graph shows how the length of a buildings shadow at a certain time of day is related to the height of the building.
Artyom0805 [142]
A. the graph represents a relation because it contains ordered pairs (x,y). It is also a function because there are no repeating x values.

B. (0,0) (8,6)
slope = (6 - 0 ) / (8 - 0) = 6/8 = 3/4
so ur equation is : y = 3/4x or f(x) = 3/4x <===

C. the variable x represents the height of the building and the variable y (or f(x)) represents the total length of the shadow
3 0
3 years ago
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Which of the following is the linear parent function?
Naddika [18.5K]

Answer:

b

Step-by-step explanation:

3 0
3 years ago
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