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3 years ago

Help pleaseeeeeeeeeeeeee!!!!!!!!!!!!!!!! T^T

Mathematics

2 answers:

artcher [175]3 years ago

8 0

1 + (-5/8) = 3/8

Explanation: If the coffee wasn’t drank it would’ve been at fraction 1 (or 100%)

Since he drank 5/8 of it. The coffee left is now 1-(5/8)

But since the question has asked to give the equation in addition format. Put a plus sign in between the two.

Therefore,
1 + (-5/8)

Solve it,
= 1-(5/8)
= (8-5)/8
= 3/8

Hence the equation is:

1 + (-5/8) = 3/8.

boyakko [2]3 years ago

8 0

Answer: Therefore,

1 + (-5/8)

Solve it,

= 1-(5/8)

= (8-5)/8

= 3/8

Step-by-step explanation:

You might be interested in

The measure of one angle of an octagon is two times smaller that of the other seven angles. What is the measure of each angle?

Anestetic [448]

Answer:

7 of the angles measure 144 degrees each and one angle measures 72 degrees

Step-by-step explanation:

Let

x -----> represent the measures of the seven same-size angles,

x/2 ----> represent the measure of the one that is "two times smaller."

we know that

The sum of internal angles of a polygon can be calculated as:

$S=180^o(n-2)$

where

n is the number of sides of the polygon

In this case

n=8 (octagon)

substitute

$S=180^o(8-2)=1,080^o$

The linear equation that represent this problem is

$\frac{x}{2}+7x=1,080$

solve for x

$\frac{15x}{2}=1,080\\\\15x=2,160\\\\x=144^o$

$\frac{x}{2}=72^o$

therefore

7 of the angles measure 144 degrees each and one angle measures 72 degrees

7 0

3 years ago

The perimeter of a quarter circle is 14.28 KM. What is the quarter circle's radius?

lawyer [7]

Circumference= 2πr
Circumference= perimeter

14.28km= 2(3.14)r
14.28= 6.2831853072r
divide both sides by 6.2831853072
2.27= r

ANSWER: The radius is 2.27km

Hope this helps! :)

3 0

3 years ago

Can someone help me with this question please?

gladu [14]

X-intercept is (1.2,0)
y-intercept is (0,-1.5)

4 0

3 years ago

The expression cos(A-B) - cos(A+B) is equal to

olchik [2.2K]

Cos (A-B) - cos (A+B)
= (cosAcosB +sinAsinB) - (cosAcosB - sinAsinB)
=2sinAsinB

Ans: 4

6 0

3 years ago