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mamaluj [8]
3 years ago
15

Someone, please help me this is really easy! well I think...

Mathematics
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

-3 = 4x -7

4 = 4x

1 = x

Step-by-step explanation:

hope this helps

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Triangle ABC is an isosceles triangle. Angles B and C are base angles, with measurements of (11x −10)° and (7x + 10)°, respectiv
Ulleksa [173]

Answer:

m∠A = 90°

Step-by-step explanation:

In isosceles triangle base angles are congruent. That means we can equate measurments of angle B and angle C and solve for x!

m∠B = m∠C

11x - 10 = 7x + 10

4x - 10 = 10

4x = 20

x = 5

Now let's insert x back in the expressions for angles.

m∠B = (11x − 10)° = (11(5) − 10)° = 45°

m∠C = (7x + 10)° = (7(5) + 10)° = 45°

<u>Sum of all angles in the triangle is 180°.</u> Let's make an equation.

m∠A + m∠B + m∠C = 180°

m∠A + 45°+ 45° = 180°

m∠A  = 90°

7 0
2 years ago
How to divide 6,875 by .025
Leokris [45]
Answer= 285000
How to= the number you are dividing by has a decimal move the decimal point all the way to the right counting the number of places you’ve moved it to. Then move the decimal point in the number you’re dividing the same number of places to the right
5 0
3 years ago
At the third-grade party, two groups each had their own pizza. The blue group ate 7/8 of a pizza. The green group ate 2/8 of a p
Sav [38]
The blue group did because they ate 7 slices out of 8 while the green team only ate 2 out of 8
4 0
3 years ago
A limited-edition poster increases in value each year with an initial value of $18. After 1 year and an increase of 15% per year
Andru [333]

Answer:

y = 18 * 1.15^x

Step-by-step explanation:

Given

a = 18 --- initial

r =15\% -- rate

Value after a year = $20.70

Required

Expression to calculate its value after y years

This is calculated using:

y = ab^x

Where

b=1 +r

Substitute r =15\% in b=1 +r

b = 1 + 15\%

b = 1 + 0.15

b = 1.15

Substitute b = 1.15 and a = 18 in y = ab^x

y = 18 * 1.15^x

5 0
3 years ago
Help me pleaseeeeee!!!!!
stealth61 [152]

Answer:

61

Step-by-step explanation:

   3x + 28

   5x + 52

<u>+   2x - 10    </u>

  10x + 70 = 180º

      x = 11

3(11) + 28 = 61º

7 0
4 years ago
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