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raketka [301]
3 years ago
15

Find the value of x plz plz plz

Mathematics
2 answers:
eduard3 years ago
6 0

Answer:

28

Step-by-step explanation:

A triangle always has 180° so that means 40° (2x+9)° and another angle add up to 180°.

We can find out two angles in order to find out the third, one of them is 40°  the other is 180°-105° because there are 180° on a line.

you get 75.

75°+40°=115°

180°-115°=65°

2x+9=65°

Make x the subject of the formula:

2x=56

(take away 9)

x=28

(divide both sides by 2)

Wewaii [24]3 years ago
4 0

Answer:

X=28

Step-by-step explanation:

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3l of ice cream is 10$ 4l of ice cream is 12% which is the better choice​
Korolek [52]

Answer:

4l of icecream

Step-by-step explanation:

10÷3=3.33

12÷4=3

3 0
2 years ago
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likoan [24]
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3 years ago
Vending machines can be adjusted to reject coins above and below certain weights. The weights of legal U.S. quarters have a norm
tigry1 [53]

Answer: The percentage of legal quarters will be rejected by the vending machine = 2.275%

Step-by-step explanation:

Given: The weights of legal U.S. quarters have a normal distribution with a mean of 5.67 grams and a standard deviation of 0.07 gram.

Let x be the weights of legal U.S. quarters .

Required probability: P(x5.81)

=P(\dfrac{x-\mu}{\sigma}\dfrac{5.81-5.67}{0.07})\\\\=P(z2)\approx0.02275    \ \ \ [By\  P-value\ calculator]

The percentage of legal quarters will be rejected by the vending machine = 2.275%

5 0
2 years ago
Alex wrote 103.903 in expanded form as 100+3x1+9x1/100+3x1/1,000 explain his mistake and how to correct it
11111nata11111 [884]
The 9 is in the tenths place so it should be 9x1/10. Meaning it would be 100+3x1+9x1/10+3x1,000
3 0
3 years ago
PLEASE HELP ME TO SOLVE THIS QUESTION WITH STEP-BY-STEP. THANK YOU!!!​
Alexeev081 [22]

Answer:

Can u show the whole question

5 0
2 years ago
Read 2 more answers
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