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Kazeer [188]
3 years ago
14

Trey has money saved for a school trip. He earns an additional $40 mowing lawns to add to his savings. Trey's parents give him e

nough money to double the amount he has so far for the trip. Now Trey has a total of $234 for the trip. How much money did Trey have saved before mowing lawns?
Mathematics
1 answer:
serg [7]3 years ago
6 0

Answer:

234 divided by 2 is 117, he had 117 when he saved up mowing lawns

Step-by-step explanation:

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PLEASE HELP!!
allsm [11]

Answer:

im guessing?

Step-by-step explanation:

each=4921

3 0
3 years ago
An ice cream shoppe charges $1.19 for a scoop of ice cream and $0.49 for each topping. Jeb paid $4.55 for a three scoop sundae.
AysviL [449]
He bought 3 scoops, each costing $1.19
The cost of the three scoops= 3*1.19= $3.57

Total cost of scoops and toppings is $4.55
Cost of toppings only= 4.55-3.57= $0.98
Each topping costs $0.49

Therefore number of toppings bought= 0.98/0.49= 2

Answer: 2 toppings

3 0
3 years ago
Which of the following functions has the function rule y = x +4?
Alexus [3.1K]

Replace x with the given values and solve for y.

The answer is:

f(-3,1),(0,4), (2, 6))

7 0
2 years ago
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
ipn [44]

Answer:

The answer is C.

Step-by-step explanation:

The slow cooling of intrusive igneous rock can cause large crystals to form. Crystals also form in metamorphic rock, but due the pressure, are often smaller.

Hope this helped!

7 0
2 years ago
Read 2 more answers
A club consists of 21 Republicans and 25 Democrats. If four people are chosen at random to be on a​ committee, what is the proba
Allushta [10]

Answer:

88.58% probability that at least one person from each political party will be​ chosen

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Also, the order which the people are chosen is not important. So the combinations formula is used to solve this problem.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

If four people are chosen at random to be on a​ committee, what is the probability that at least one person from each political party will be​ chosen?

Either only Republicans or Democrats are chosen, or at least one member from each party is chosen. The sum of these probabilities is 100%.

The easier way to solve this is first finding the probability that members are only from one party.

Probability of having members from only one party:

Desired outcomes:

Only Democrats:

4 from a set of 25.

Only Republican:

4 from a set of 21.

So

D = C_{25,4} + C_{21,4} = \frac{25!}{4!21!} + \frac{21!}{4!17!} = 18635

Total outcomes:

4 from 21+25 = 46 total members

T = C_{46,4} = \frac{46!}{4!42!} = 163185

Probability:

p = \frac{D}{T} = \frac{18635}{163185} = 0.1142

11.42% probability of having people from only one party in the committee

Probability of at least one person from each party:

p + 11.42 = 100

p = 88.58

88.58% probability that at least one person from each political party will be​ chosen

5 0
3 years ago
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