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Neporo4naja [7]
2 years ago
14

Help!!! Please help urgently!

Mathematics
1 answer:
valentina_108 [34]2 years ago
6 0

Answer:

x = 18

Step-by-step explanation:

25 + 20 = 45

Proportions:

45  ⇒ 50

20 ⇒ x

x = 45*20/50

x = 18

You might be interested in
One angle is twice its supplement increased by 36°. Find the measures of the two supplementary angles.
agasfer [191]

Answer:

48 and 132 degrees

Step-by-step explanation:

supplement=s

one angle=2s+36

2s+36+s=180

3s+36=180

3s=144

s=48

2(48)+36=132

Therefore, 48 and 132 degrees

I hope this helped and have a good rest of your day!

8 0
3 years ago
2 tenths is equal to____ fifths
Sunny_sXe [5.5K]
To solve this, it is easiest to set up a proportion, letting x represent the number that we don't know.

2/10 = x/5

Now, we can use cross products to simplify this proportion.  Cross products sets the products of the numerator and denominator of separate fractions equal to one another.  It results in the equation:

(5)(2) = (10)(x)

Let's multiply out these numbers to further simplify the equation.

10 = 10x 

Finally, we have to divide both sides by 10, to get our variable x alone

x = 1

Therefore, 2 tenths is equal to 1 fifth.
5 0
3 years ago
Read 2 more answers
Write and solve an equation to find the number<br><br> six times the sum of a number and 15 is -42
Mumz [18]

Hey there! I'm happy to help!

Sum means to add. Let's call our number n.

n+15

We multiply this whole thing by 6.

6(n+15)

And this is -42.

6(n+15)=-42

We use distributive property to undo the parentheses.

6n+90=-42

We subtract 90 from both sides.

6n=-132

We divide both sides by 6.

n=-22.

Have a wonderful day! :D

8 0
4 years ago
13. Nathan completed 60% of the passes he attempted during the last football season. If he attempted 90 passes, how many did he
shutvik [7]

Answer:

54 passes

Step-by-step explanation:

90 x 0.6 = 54

5 0
3 years ago
The statement x + 2 = 2 + x is an example of the commutative property of addition.
Irina-Kira [14]

Answer:

true

Step-by-step explanation:

the sum remains same if order is changed

6 0
2 years ago
Read 2 more answers
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