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lesya692 [45]
3 years ago
7

4= t/2.5 t=? this is mathematics

Mathematics
2 answers:
nirvana33 [79]3 years ago
6 0

Answer:

4=t/2.5

*2.5 on both sides

10=t

Hope this helps!

-mark as brianliest-

taurus [48]3 years ago
4 0

Answer:

<h2>t = 10</h2>

Step-by-step explanation:

4=\dfrac{t}{2.5}\qquad\text{multiply both sides by 2.5}\\\\4\cdot2.5=\dfrac{t}{2.5\!\!\!\!\!\diagup}\cdot2.5\!\!\!\!\!\diagup\qquad\text{cancel 2.5}\\\\10=t\to t=10\\\\\text{Check:}\\\\\dfrac{10}{2.5}=4\qquad\bold{CORRECT}

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Alyssa took a math test for 20 questions and she answered 16 questions correctly in order to get an a she needs to answer at lea
Elenna [48]

Answer:

She did not qualify the exam.

Step-by-step explanation:

Given data

Total no of question in a test = 20

No. of question answered correctly = 16

Percentage of question answered correctly

(\frac{16}{20}) 100 = 80

But in order to get in the exam the student must have to score at least 90 %. But she got only 80 % so she did not qualify the exam.

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3 years ago
In the given figure find the value of x and y?<br>Show you works - Thank you!​
Vaselesa [24]

<u>EXPLANATION</u><u>:</u>

In ∆ ABC , ∠ABC = 40°

  • ∠CAB = x°
  • & ∠ACD = 50°

∠ACD is an exterior angle formed by extending BC to D

We know that

The exterior angle of a triangle formed by extending one side is equal to the sum of the opposite interior angles.

∠ACD = ∠CAB + ∠ABC

⇛50° = x° + 40°

⇛x° = 50°-40°

<h3>⇛x° = 10°</h3>

and

In ∆ ACD , AC = CD

⇛ ∠CDA = ∠CAD

Since the angles opposite to equal sides are equal.

Let ∠CDA = ∠CAD = A°

We know that

The sum of all angles in a triangle is 180°

In ∆ ACD,

∠CDA +∠CAD + ∠ACD = 180°

A°+A°+50° = 180°

⇛2A°+50° = 180°

⇛2A° = 180°-50°

⇛2A° = 130°

⇛A° = 130°/2

⇛A° = 65°

now,

∠CDA = ∠CAD = 65°

∠BAC + ∠CAD+y = 180°

Since angles in the same line

10°+65°+y = 180°

⇛75°+y =180°

⇛y = 180°-75°

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2 years ago
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3 years ago
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Find the slope of the line that contains (-2,-2) and (-10,-9)
andrey2020 [161]

Answer:

\huge  \frac{7}{8}  \\

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

From the question we have

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We have the final answer as

\frac{7}{8}  \\

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7 0
2 years ago
A designer is creating various open-top boxes by cutting four equally-sized squares from the corners of a standard sheet of 8.5
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Answer:

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FORMULA FOR WIDTH:

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FORMULA FOR VOLUME:

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