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Pavlova-9 [17]
3 years ago
15

The function c(x) = 3x − 4 determines how many cupcakes need to be purchased for a birthday party, where x is the number of kids

at the party. The party planner uses d(c(x)) to find the amount of money to bring for the cupcake purchase. The function d(x) = 2x + 5. Solve for how much money to bring when there are 7 kids at the party
Mathematics
1 answer:
harina [27]3 years ago
8 0
D(c(7))
so 

c(7)=21-4=17

d(17)=34+5=39

39$
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Avery weighs x pounds. Jada weighs 18 pounds more than Avery. Which expression tells how much the two of them weigh together? x
Rashid [163]

Answer:

Second option: x + x + 18

Step-by-step explanation:

You know that "x" represents the Avery's weigth (in pounds).

Let be "y" the weight of Jada in pounds.

Since Jada weighs 18 pounds more than Avery, you can write this expression:

y=x+18

The weight of them together is:

weight\ together=x+y

Substituting, you get:

weight\ together=x+x+18

Therefore, the expression that tells how much the two of them weigh together is the one provided in the second option:

x + x + 18

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4 years ago
How many cubes with side 2cm are needed to make a cube with side 6cm​
Ilya [14]

Answer:

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Step-by-step explanation:

<u>Cube with side 2 has volume:</u>

  • 2³ = 8

<u>Cube with side 6 has volume:</u>

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<u>Number of cubes:</u>

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7 0
3 years ago
13x + 5 + 17x -4.5 + x explain why this is wrong show your
alekssr [168]

The answerer is combining terms in x with constants

that is, 13x + 5 ≠ 18x

13x + 5 + 17x - 4.5 + x

= (13x + 17x + x ) + 5 - 4.5 ← collecting like terms

= 31x + 0.5 ← correct simplification





7 0
4 years ago
Read 2 more answers
How many positive integers are factors of 55^3 + 66^3?​
ioda

Answer:

55= 1, 5, 11 and 55

3= 1,3

66= 1, 2, 3, 6, 11, 22, 33, 66

Step-by-step explanation:

you just need to find the multiplacation to eah number

6 0
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Please tell me how to do it thank you​
Triss [41]

Answer:

First set: 0.95. Second set: 0.86. Third set: 0.88.

Step-by-step explanation:

Imagine that these are not decimals, they are regular numbers (for example: 0.88 is turned into 88). You would determine which one is the greatest depending on which one is higher (like 44 is higher than 32). Therefor the first set: 0.95 the second set: 0.86 the third set: 0.88.

6 0
3 years ago
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