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REY [17]
3 years ago
12

Please help me with my math homework

Mathematics
1 answer:
dezoksy [38]3 years ago
4 0

Answer:

d. COB

Step-by-step explanation:

Complementary angles are angles which add to 90 or form right angles.

COB complements COD.

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1/16 of a cup is in each brownie
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3 years ago
4x + 3y = 16<br> 7x+6y=31<br> O A. (1,3)<br> B. (1.4)<br> C. (4,0)<br> OD. (4,3)<br> SUBMIT
klasskru [66]

Answer:

B

Step-by-step explanation:

Given the 2 equations

4x + 3y = 16 → (1)

7x + 6y = 31 → (2)

Multiplying (1) by - 2 and adding to (2) will eliminate the term in y

- 8x - 6y = - 32 → (3)

Add (2) and (3) term by term

- x = - 1 ( multiply both sides by - 1 )

x = 1

Substitute x = 1 in either of the 2 equations and solve for y

Substituting in (1)

4(1) + 3y = 16

4 + 3y = 16 ( subtract 4 from both sides )

3y = 12 ( divide both sides by 3 )

y = 4

Solution is (1, 4 ) → B

4 0
3 years ago
Jordan estimated that his paper airplane would fly 42 feet. It actually traveled 50 feet. What was the percent error?
topjm [15]

\huge \mathcal{ Answer࿐}

  • Error (e) = 50 - 42 = 8 feet

  • assumed value (a) = 42 feet

\boxed{ \mathrm{ \% \: error =  \dfrac{error}{assumed \: value}  \times 100}}

  • \mathrm{ \% \: error  =\dfrac{8}{42}}  \times 100

  • \mathrm{ \% \: error  = \dfrac{800}{42} }

  • \mathrm{ \% \: error  = 19.04 \%}

_____________________________

\mathrm{ \#TeeNForeveR}

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What is the X-factor of 5x​
Ghella [55]
Is there any multiple choice answers?
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In a class of 32 the ratio of number of boys to the number of girls in 5/3 Determine how many boys are there in the class.​
qaws [65]

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Step-by-step explanation: there are 20 boys

4 0
2 years ago
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