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pentagon [3]
3 years ago
6

sebastian was saving $8.50 each week to have enough money for a used phone that costs $122. if his father started him off with $

25, which of the following is the minimum number of whole weeks sebastian will need to save?
Mathematics
1 answer:
Leona [35]3 years ago
7 0
So to make it easier from the start, subtract 25 from 122, which will give you 97.
Now, divide 97 by 8.50, which will give you 11.4117647.
Now since it said the minimum amount of WHOLE weeks, the answer is 12 weeks.
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7(2x−a)−3(4x−a)−5(3x+2a)+a=0.
Luden [163]

Answer:

0

Step-by-step explanation:

5 0
3 years ago
I really need some help. I need to find the inverse of this equation in the picture below. Thanks!
serg [7]

Answer:

y=81x^4+648x^3+1944x^2+2592x+1289

Step-by-step explanation:

1. Interchange x and y.

  • y=\frac{\sqrt[4]{x+7}}{3}-2
  • x=\frac{\sqrt[4]{y+7}}{3}-2

2. Then solve x=\frac{\sqrt[4]{y+7}}{3}-2 for y.

3. y=81x^4+648x^3+1944x^2+2592x+1289

I hope this helps.

4 0
3 years ago
Explain what is the better buy. 1 litre of milk for 75p or 2 pints of milk for 75p. make sure to explain why.
Soloha48 [4]

Answer:

1 litre of milk for 75p

Step-by-step explanation:

1 pint ≈ 473 ml

2 pints = 2×473ml =  946 ml

1 l = 1000 ml

7 0
3 years ago
Read 2 more answers
Find the distance between the 2 points (6, - 4) and (2, - 7). Please show me how you found it.
Serga [27]
\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ 6}}\quad ,&{{ -4}})\quad 
%  (c,d)
&({{ 2}}\quad ,&{{ -7}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
d=\sqrt{[2-6]^2+[-7-(-4)]^2}\implies d=\sqrt{(2-6)^2+(-7+4)^2}
5 0
4 years ago
Mike has 21 pounds of tomatoes and 9 pounds of mixed peppers from his garden that he will use to make sals.
Grace [21]

The number of batches of salsa that can be made = x = 6 batches

The number of bat  tomato sauce that can be made = y = 3 batches

Step-by-step explanation:

We are given the system of equations:

x+5y=21\\x+y=9

where variable x represents the number of batches of salsa that can be made and y represents the number of bat  tomato sauce that can be made.

We need to solve the systems to find the values of x and y.

Let:

x+5y=21\,\,\,eq(1)\\x+y=9\,\,\,eq(2)

Subtract both equations:

x+5y=21\\x+y=9\\-\,\,\,-\,\,\,\,\,\,-\\------\\4y=12\\y=\frac{12}{4}\\y=3

So, value of y=3

Putting value of y in eq(2) and finding value of x:

x+y=9\\x+3=9\\x=9-3\\x=6

So, value of x=6

The number of batches of salsa that can be made = x = 6 batches

The number of bat  tomato sauce that can be made = y = 3 batches

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
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