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sergij07 [2.7K]
3 years ago
15

Find the value of x

Mathematics
1 answer:
Vitek1552 [10]3 years ago
4 0

Answer:

x = 66

Step-by-step explanation:

Shapes with four sides are always 360 degrees

x + x - 20 + x + 40 + 2x + 10 = 360

combine like terms

5x + 30 = 360

subtract 30 from both sides

5x = 330

divide 5 from both sides

x = 66

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Find the value of the expression 4a^4 − 2b^2 + 40 when a = 2 and b = 7
Effectus [21]

Answer:6

Step-by-step explanation:

4(2)^4 − 2(7)^2 + 40

4(16)-2(7)^2+40

64-2(49)+40

64-98+40

-34+40

6

7 0
3 years ago
Read 2 more answers
Israel added $120 to his savings. This added amount represents 1/6 of his total savings. If s represents the total savings, whic
oee [108]

Calculista Ambitious

the correct question in the attached figure


Let

s----------> total savings


case a) Israel added $80 to his savings


we know that

80=(1/8)*s-------> multiply by 8 both sides------> s=$640


the answer case a) is

the equation is 

80=(1/8)*s


case b) Israel added $120 to his savings


we know that

120=(1/8)*s-------> multiply by 8 both sides------> s=$960


the answer case b) is

the equation is 

120=(1/8)*s




Read more on Brainly.com - brainly.com/question/10503464#readmore

7 0
3 years ago
Please help: what is 2+4+4+10? I will five brainliest
telo118 [61]

Answer:

It is 20

Step-by-step explanation:

Use your fingers if necessary

5 0
3 years ago
Tell me which number you doing so I know what one your doing
liubo4ka [24]

Answer:

here you go

Step-by-step explanation:

1: equal to

2: the answer of two numbers added together is the sum

3: answer to a multiplication problem

6 0
2 years ago
Read 2 more answers
25 km<br> 7 km<br> 18 km<br> 24 km<br> Find the area!!
Anna35 [415]

Answer:

75600k^4 m^4 Hope that help !

Step-by-step explanation:

1. Take out the constants (25×7×18×24) kkkkmmmm

2. Simplify 25×7=175 (175×18×24)kkkkmmmm

3. Simplify 175×18=3150 (3150×24)kkkkmmmm

4. 3150×24= 75600kkkkmmmm

5. The answer would be 75600k^4 m^4

7 0
3 years ago
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