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katen-ka-za [31]
3 years ago
7

This is 7th grade math..........

Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Okay here's my reasoning:

they are telling us that 3 and 5 put together is 8. While this could be either A or D, this question has already told us that it equals 8. This equation is basically more better suited to 8=3+5 because this is show that 8 can be found by putting 3 and 5 together.

Hope this helps!

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How many more miles per gallon does Mrs. Sanchez get than Mr. White?
never [62]
Answer: 30.4


Explanation: 76 divided by 2.5 equals 30.4.
30.4x5=152
30.4x15=456
30.4x18=547.2



I hope this helped! Let me know if I’m wrong! Have a great day❤️
3 0
3 years ago
BC and DF are parallel lines. B is a point on AD and E is a point of DF. BD=BE. work out angle DBE give a reason. ITS ON MATHSWA
zloy xaker [14]

Answer:

(Angle DBE) ∠DBE = 50°

Step-by-step explanation:

It is crucial for us to be able to interpret plane geometry related question in order to solve them efficiently.

From the question given; we have analysed and come up with a diagrammatic expression and mathematical solution that clearly explains the question .

Given that

BC and DF are parallel lines.

B is a point on AD  

B is a point on AD

BD=BE

work out angle DBE and give a reason.

The diagram can be seen in the attached image below.

SInce ∠BD = ∠DE

Then triangle BDE is an isosceles triangle. In an isosceles triangle ; two sides are equal in length.

The sum of angles in an isosceles triangle = 180° (sum of angles in a triangle)

So;

∠BDE + ∠BED + ∠DBE = 180° (sum of angles in a triangle)

From the diagram; we will see that ∠ABC = ∠BDE  (corresponding angle)

Since ; ∠ABC is not given and which is needed to solve this question.

Let's just assume that ∠ABC is 65° , the main thing is to be able to interpret and understand the concept of the question.

Now;

Since

∠ABC = ∠BDE  

∠ABC  = 65°

∠BDE  = 65°

Again;

∠BDE + ∠BED + ∠DBE = 180° (sum of angles in a triangle)

∠BDE will be aso equal to  ∠BED ; this is because since the length of the opposite sides of the isosceles triangle are equal, their angles will also be equal.

Therefore;

65° + 65° + ∠DBE = 180° (sum of angles in a triangle)

130 ° + ∠DBE = 180° (sum of angles in a triangle)

∠DBE = 180° - 130°

∠DBE = 50°

3 0
3 years ago
Dvide if the polynomial does not divide evenly. Include the remainder as a fraction (18u^2 - 142u - 11) ÷ (u - 8)​
Mashutka [201]

Answer:

  • 18u + 2 + 5/(u - 8)

Step-by-step explanation:

  • (18u^2 - 142u - 11) ÷ (u - 8)​

  • 18u^2 - 142u - 11 =
  • 18u^2 - 8*18u + 2u - 11 =
  • 18u(u - 8) + 2u - 16 + 5 =
  • 18u(u - 8) + 2(u - 8) + 5 =
  • (18u + 2)(u - 8) + 5

  • (18u^2 - 142u - 11) ÷ (u - 8)​  = 18u + 2 + 5/(u - 8)
6 0
3 years ago
Read 2 more answers
GEOMETRY PLEASE HELP
marysya [2.9K]

Answer:

see explanation

Step-by-step explanation:

(5)

Since ∠EBA = 90° then ∠ABD = 90° ( straight angle ) and

∠ABC + ∠CBD = ∠ABD, that is

2x + 3x - 10 = 90, simplifying

5x - 10 = 90 ( add 10 to both sides )

5x = 100 ( divide both sides by 5 )

x = 20, thus

∠ABC = 2x = 2 × 20 = 40°

∠CBD = 3x - 10 = (3 × 20) - 10 = 60 - 10 = 50°

(6)

4x - 18 = 3x + 7 ( vertical angles are congruent )

Subtract 3x from both sides

x - 18 = 7 ( add 18 to both sides )

x = 25

7y = 5y + 28 ( vertical angles are congruent )

Subtract 5y from both sides

2y = 28 ( divide both sides by 2 )

y = 14

7 0
3 years ago
Write seven hundredths in standard form
velikii [3]
I think it would be 0.07
6 0
3 years ago
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