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pickupchik [31]

3 years ago

10

Quincy is trying to estimate the height of a tree in his backyard. He measures the tree’s shadow as 12 ft. He stands near the tr

ee and measures his own shadow as 3 ft. Quincy knows that he is about 5 ft tall. He estimates the height of the tree by following these steps:

1 answer:

lions [1.4K]3 years ago

8 0

5:3
x:12
x=20
The height of the tree should be 20 feet

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Indica las expresiones que determinan conjuntos. Explica tu respuesta

AleksAgata [21]

Ching chong: wang kong

4 0

4 years ago

Circle M is shown below. AB is tangent to the circle at point A. The radius of a circle M is 15. JB = 10. DF = 18. AC = 10.

e-lub [12.9K]

Answer:

e

Step-by-step explanation:

8 0

3 years ago

You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed?

Serggg [28]

Answer:

B

Step-by-step explanation:

The <u>Elimination Method</u> is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.
If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multoplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of equation)

8 0

4 years ago

Hayley borrowed $1,854 from her parents. She agreed to repay them in equal installments throughout the next 18 months. How much

Serggg [28]

Answer: $ 618

Step-by-step explanation:

Money borrowed = $1,854

Total months taken to repay = 18 (Number of installments)

Money paid per month = $\dfrac{\text{Money borrowed}}{\text{Number of installments}}$

$=\dfrac{1854}{18}=\$103$

Now , money paid in 1 year = 12 x $ 103 =$ 1236 [1 year = 12 months ]

After a year , Haley still owe = $1,854 - $ 1236= $ 618

Hence, Haley still owe her parents $618 after a year .

7 0

3 years ago

Ms. Chen is planning to take her camp group on a field trip to Pottery Bayou where each person will create her own piece of art

erica [24]

Answer:

1. $C=21x.$

2. $C=(8x+104).$

Step-by-step explanation:

Let the number of people in the group be x. Denote the total cost as C.

1. If the regular cost is $21 per person, then the total regular cost for x people is $C=21x.$

2. If the special cost is $8 per person, then the total special cost for x people is $\$8x.$ There is an additional $104 fee for a private room, thus the total special cost is $C=(8x+104).$

3 0

4 years ago