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3 years ago

Parallelograms help please !

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

4 0

Answer:

5) x=10

6) x=7

7) x=3

8) x=12

Step-by-step explanation:

5) 19=2x-1

19+1=2x

20=2x

x=10

6) 3x-6=15

3x=21

x=7

7)10=2x+4

10-4=2x

6=2x

x=3

8) x+3=2x-9

3=x-9

x=12

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115% of what number is 120?

antiseptic1488 [7]

115% is the same as 1.15
some number = x

115% of some number is 120
1.15 of x is 120
1.15 * x = 120
$\frac{1.15*x}{1.15} = \frac{120}{1.15}$
x = 104.3478
x ≈ 104.3

Hope this helps! :)

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3 years ago

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If 4+2=26 and 8+1=79 and 6+5=111 what is 7+3=? *Please Show Work*

Natali5045456 [20]

410 ?
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3 years ago

If logx √2 = 1/6 , then x =?

Kaylis [27]

Step-by-step explanation:

logx√2=1/6

<=> logx(2^1/2)=1/6

<=>1/2.logx(2)=1/6

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<=>x=

Sorry I forgot the formula in the last step

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3 years ago

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Mary, Kate, and Sara are playing a card game called Shoe Store. The game is played with 36 cards, which make pairs of shoes. Mar

bekas [8.4K]

The anwser is b 36 divided by 3 is 12

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3 years ago

A jar has 20 marbles: 3 green, 12 blue, 5 red.

nadezda [96]

Probability is defined as the likelihood or the certainty that an event is going to occur or happen.

The probability of randomly choosing a red and then a green marble is $3/76$ .

The total number of marbles = 20

The number of green marbles= 3

The number of blue marbles = 12

The number of red marbles = 5

The probability of choosing a red marble = Number of red marbles / Total number of marbles

= 5/20

In simplest fraction form = $\frac{1}{4}$

We are told in the question that you keep the red marble you choose, So this means the total number of marbles left reduces to 19

The probability of choosing a green marble is = Number of green marbles / New total number of marbles

= 3/19

Therefore, the probability of randomly choosing a red and then a green marble is

P (Red) x P(Green)

= 1/4 x 3/19

= $3/76$

To learn more, visit the link below:

brainly.com/question/22563776

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2 years ago