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Blizzard [7]
3 years ago
13

Help! will give brainlist!

Mathematics
1 answer:
slega [8]3 years ago
5 0

Answer:

117.5

Step-by-step explanation:

y= 3.5x + 30, where x = his number of toys sold

y= 3.5(25) + 30

y= 117.5

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Solve for x 4(−7x−2)−10=-3 + 5x+1
Hatshy [7]

Answer:

i think the answer is -33

Step-by-step explanation:

8 0
3 years ago
The height of the sail on a boat is 7 feet less than 3 times the length of its base. If the
xxTIMURxx [149]

Answer:

Base=8 feet

Height=17 feet

Step-by-step explanation:

Let

Base=x

Height=3x-7

Area=68 square feet

Area of the sail boat=1/2 * base * height

68 = 1/2 * x * (3x-7)

Cross product

68 * 2 =(1) * (x) * (3x-7)

136 = 3x^2 - 7x

3x^2 - 7x - 136=0

Using quadratic formula

x= -b +or- √b^2 - 4ac / 2a

= -(-7) +or- √(-7)^2 - (4)(3)(-136) / 2(3)

= 7 +or- √49 - (-1632) / 6

= 7 +or- √49+1632) / 6

= 7 +or- √1681 / 6

=7 +or- 41 /6

x= 7+41 / 6 or 7-41 / 6

=48/6 or -34/6

=8 or -17/3

Answer:

Step-by-step explanation:

Let

Base=x

Height=3x-7

Area=68 square feet

Area of the sail boat=1/2 * base * height

68 = 1/2 * x * (3x-7)

Cross product

68 * 2 =(1) * (x) * (3x-7)

136 = 3x^2 - 7x

3x^2 - 7x - 136=0

Base of the boat can't be a negative value

Therefore,

Base = x = 8 feet

Height= 3x-7

=3(8)-7

=24-7

=17 feet

3 0
2 years ago
Factor the following expression: 16z+20
Evgen [1.6K]

Answer:

4z + 5

Step-by-step explanation:

16 and 20 are both dividable by 4, so you divide them both by four and then you have your answer

3 0
2 years ago
Read 2 more answers
How would u write Subtract 2 from 5 times d​
julsineya [31]

Answer:

5D-2

Step-by-step explanation:

5 times d = 5d. subtract 2 is after the 5d

5 0
2 years ago
Need answer ASAP this assignment is due tomorrow
dmitriy555 [2]

Answer:

Venn diagrams, De'moivres rule and probability

Step-by-step explanation:

4 0
3 years ago
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