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OverLord2011 [107]
2 years ago
11

Question 7

Mathematics
1 answer:
spin [16.1K]2 years ago
8 0

Answer:

B) 62 is the answer. I'm sure

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Nick needs to raise at least $320 for his trip. He has $80 saved already, and he makes $40 per yard that he mows. Write and solv
Anestetic [448]

Answer: Nick must now at least 6 yards.

Step-by-step explanation:

Since Nick has $80 saved already, and he makes $40 per yard that he mows, thus can be put up in an equation as:

= 80 + 40y

where y = number of yards

Since Nick needs to raise at least $320 for his trip, the equation to solve this will be:

80 + 40x ≥ 320

40x ≥ 320 - 80

40x ≥ 240

x ≥ 240/40

x ≥ 6

Therefore, Nick must now at least 6 yards.

4 0
2 years ago
How do you solve the equation 2cos^2 - cosx = 0 for all solutions?
exis [7]

Answer:

<em>π/2 and π/3</em>

Step-by-step explanation:

Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.

let P = cosx

The equation becomes 2P²-P = 0

P(2P-1) = 0

P = 0 and 2P-1 = 0

P= 0 and P = 1/2

Since P = cosx

cosx = 0 and cos(x) =  1/2

If cos(x) = 0

x = cos⁻¹0

x = 90⁰

x = π/2

If cos(x) = 1/2

x = cos⁻¹1/2

x = 60⁰

x = π/3

<em>Hence the solutions to the equation are π/2 and π/3.</em>

7 0
3 years ago
Please help solve with steps
serg [7]

Answer:

6 6/11, 6.547, 131/20, 6.77.

Step-by-step explanation:

First convert to decimal values.

131/20 = 6.55

6.77

6 6/11 = 6.54545

6.547

7 0
3 years ago
In a scale drawing of an apartment 1 centimet represents 2 3/4 feet. If the length of the kitchen is 4 1/2cm on the scale drawin
weeeeeb [17]

Answer:

12 3/8 feet

Step-by-step explanation:

Because 4 1/2 times 2 3/4 equals 99/8, then 99 divided by 8 equals 12 3/8.

3 0
3 years ago
Jessica is purchasing a new car whose MSRP is $19,750. She is trading in her old car for $8100 and being upgraded to a premium p
andrew-mc [135]

Jessica is purchasing a new car whose MSRP is $19,750. She is trading in her old car for $8100.

Without the upgrade package and delivery charge , the cost of her car is

19,750 - 8100 = $11650

upgraded cost = $6000 and  Vehicle delivery =  $600. we add the upgraded cost and delivery cost.

Total cost of car = 11650 + 6000 + 600 = $18,250


6 0
3 years ago
Read 2 more answers
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