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evablogger [386]
3 years ago
9

Solve the equation.check your solution,if possible. 1/2s=4s-21

Mathematics
1 answer:
Sladkaya [172]3 years ago
5 0
S=6

Solution
6/2=3
(6*4)=24
24-21=3
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Emily and her children went into a grocery store and she bought $20.80 worth of bananas and peaches. Each banana costs $0.80 and
-BARSIC- [3]

b + p = 14 and 0.80 b + 2 p = 20.80 are the system of equations.

Step-by-step explanation:

Step 1 :

Let b be the number of bananas

Let p be the number of peaches  

Given that the total of bananas and peaches that Emily bought  = 14

Hence we have,

b + p = 14

Step 2 :

Cost of one banana =  $0.80

Cost of one peach = $2

Cost of all the bananas and peaches Emily bought = $20.80

So sum of b bananas costing $0.80 and sum of p peaches costing $2 each is $20.80

Hence we have

0.80 b +2 p = 20.80

Solving for the above 2 equations we can get the value for b and p which will give the number of bananas and peaches bought

Step 3 :

Answer :

The system of equations that could be used to find the number of the bananas and the number of the peaches that Emily bought is given by

b + p = 14

0.80 b +2 p = 20.80

5 0
3 years ago
before leaving to visit Mexico Levant traded 270 american dollars and received 3000 Mexican pesos when he returned from Mexico h
Verdich [7]
<span>Levant traded 270 american dollars and received 3000 Mexican pesos. This means that:
1 Mexican peso = (270 x 1) / (3000) = 0.09$

Therefore,
100 pesos will be worth 100 x 0.09 = 9$

Based on this, he will receive 9$ when exchanging 100 pesos for dollars.</span>
4 0
3 years ago
Read 2 more answers
Fill in the blanks to find the quotient 5/8 divided by 3 3/4 . Give the quotient as a fraction in simplest form.
Natali5045456 [20]

Answer:

Step-by-step explanation:

(5/8)/(3+3/4)

(5/8)/(15/4)

(5/8)(4/15)

20/120

1/6

4 0
3 years ago
Which expression is not equivalent to the other three?
Kitty [74]
The right answer is B.

The first step to answering this question is combining all like terms.

A. 2x + 2 + 2x + 3x - 8
The like terms in this expression are the x terms and the constants
So, what you would do is combine all of the x terms and combine all of the constants

(2x + 2x +3x) + (2 - 8)
7x - 6

B. 4 + 7x - 2
In this expression, you would combine all of the constants

7x + (4 - 2)
7x + 2

C. -2 + 5x + 2x - 4
For this expression, you would again, combine all of the x terms and all of the constants.

-2 + 5x + 2x - 4
(5x + 2x) + (-2 - 4)
7x - 6

D. 8x - x - 6
For this expression, you would combine all of the x terms

8x - x - 6
(8x - x) - 6
7x - 6

Now let's look at all of the new answer choices:
A. 7x - 6
B. 7x + 2
C. 7x - 6
D. 7x - 6

The question is asking you to find the one expression that's different. The only different one is B, so that's the answer.
7 0
3 years ago
Read 2 more answers
A line passes through the point (9,1) and has a slope of 2.Write an equation in slope-intercept form for this line.
bogdanovich [222]

Answer:

y = 2x-17

Step-by-step explanation:

We have a point and a slope, we can write the equation in point slope form and then convert to slope intercept form

y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point

y-1 = 2(x-9)

Distribute

y-1=2x-18

Add 1 to each side

y-1+1 = 2x-18+1

y = 2x-17

This is slope intercept form

4 0
3 years ago
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