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3 years ago

7

Bethany sells roses and petunias. The expression 3r+2.5p gives the cost (in dollars) of roses and petunias. What is the cost of

7 roses and 8 petunias?

2 answers:

Mekhanik [1.2K]3 years ago

6 0

Substitute 7 for r and 8 for p in C(r,p) = 3r + 2.5p.

What is C(7,8) = 3(7) +2.5(8)? Be sure to include the $ sign with your answer.

ludmilkaskok [199]3 years ago

3 0

(3)7 + ( 2.5) 8 $221

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Round 24.99 to the nearest tenth

klasskru [66]

A tenth of 24.99 would be the first 9 after the point. In order to round it to the nearest tenth, we must look at the number after it. If that number is 5 or above, we must make the tenth one higher. In this case, the number after the tenth is above 5, so we change the tenth to a 1! Now the number becomes 25.00

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3 years ago

The figure shows triangle ABC with medians AF, BD, and CE. Segment AF is extended to H in such a way that segment GH is congruen

attashe74 [19]

Answer: Segment GD is parallel to segment HC.

Step-by-step explanation:

In ΔAHC

AG=GH (given)...........1

As BD is the median of ΔABC bisecting AC at D

∴AD=DC.........2

⇒ $\frac{AD}{DC}=\frac{AG}{GH}=1$ (from 1 and 2)

⇒segment GD is dividing the sides AH and AC in same ratio.

Therefore by the converse of Basic proportionality theorem,segment GD is parallel to segment HC.

Converse of basic probability theorem states that if a line divides any two sides of a triangle in the same ratio, then the line must be parallel to the third side.

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3 years ago

Read 2 more answers

Ted and Katie have served up a total of $94 Tata saved six dollars less than four times as much is Katie how much has Katie save

Fantom [35]

Answer:

Katie saved $20.

Step-by-step explanation:

I assume that "served" is a typo for "saved". Also, I assume that Tata and Ted are the same person.

Let the amount Katie saved = k

Then, ted saved $6 less than 4 times k, or 4k - 6.

The total saved by both is k + 4k - 6.

The total saved by both is $94.

k + 4k - 6 = 94

5k - 6 = 94

5k = 100

k = 20

Answer: Katie saved $20.

6 0

3 years ago

What's the lcm for 18, 27, 12? I got 648. Am not sure if it is correct. Can you please explain if it is correct or not?

erik [133]

Answer:

Step-by-step explanation:

Put these numbers into their prime factors.

18: 2 * 3 * 3

27: 3 * 3 * 3

12: 2 * 2 * 3

The LCM must have

two 2s

Three 3s

That's it

2*2 * 3 * 3 * 3

LCM = 108

648 might be a multiple of the three, but it's not the smallest one.

108 = 27 * 4

108 = 18 * 6

108 = 12 * 9

6 0

3 years ago

Jamal filled his gas tank and then use 7/16 of the tank for traveling to visit his grandfather. He then used 1/3 of the remainin

alisha [4.7K]

Answer:

The fraction of the tank is filled with gasoline is $\frac{3}{8}$ .

Step-by-step explanation:

Consider the provided information.

Jamal filled his gas tank and then use 7/16 of the tank for traveling to visit his grandfather.

After his first traveling the amount of gas left can be calculated as:

$1-\frac{7}{16}$

$\frac{16-7}{16}$

$\frac{9}{16}$

He then used 1/3 of the remaining gas in the tank to run around town.

That means he left with 2/3 of gas.

$\frac{9}{16}\times \frac{2}{3}$

$\frac{3}{8}$

Hence, the fraction of the tank is filled with gasoline is $\frac{3}{8}$ .

8 0

4 years ago