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kupik [55]
3 years ago
9

Kesha needs to save $11 per hour. Write two estimates Kesha could use to determine how

Mathematics
1 answer:
kotegsom [21]3 years ago
7 0
She had $10 dollars and the 15 is far so you need to have only one estimate.
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The length of a rectangular painting is 3 inches longer than its width. If the diagonal is 15 inches long, what is the length of
vladimir2022 [97]
A^2+b^2= 15^2

b=a-3

Use substitution
a^2+(a-3)^2= 225
a^2+a^2-6a+9=225
2a^2-6a=-216
2a^2-6a+216=0

2(a^2-3a+108)
2(a-12)(a+9)

(a-12)=0
a=12
(a+9)=0
a=-9
A is -9 or 12, but since an object can't have a negative length or width, a must be 12.

Plug this value of a in.
b=(12)-3
b=9

Final answer: Length=9, width=12
8 0
3 years ago
Read 2 more answers
Find the greatest rational number r such that the ratios 8/15 ÷r and 18/35 ÷r are whole numbers.
Akimi4 [234]

Answer:

  2/105

Step-by-step explanation:

"r" is the greatest common divisor (GCD) of the two fractions. It can be found using Euclid's algorithm in the usual way.

  (8/15) - (18/35) = 56/105 - 54/105 = 2/105 . . . . . this is (8/15) mod (18/35)

We can see that the next step, division of 54/105 by 2/105, will produce a remainder of 0, so the GCD is 2/105.

The greatest rational number r is 2/105.

_____

<em>Check</em>

The ratios are (8/15)/(2/105) = 28; (18/35)/(2/105) = 27. These whole numbers are relatively prime, so there is no larger r than the one we found.

5 0
3 years ago
Help me pls i need help asap​
CaHeK987 [17]

Answer:

no babe

Step-by-step explanation:

6 0
3 years ago
Inequalities<br> Which is the graph of the system x + 3y &gt; -3 and y &lt; 1/2x +1?
OLga [1]

Answer:

the 4th graph.

Step-by-step explanation:

by solving for Y in the first equation, we get the y-intercept of -1 and the second equation has a y-intercept of 1. 4th graph is the only graph with those 2 intercepts

6 0
2 years ago
Express the number 68,708 in word form and expanded form.<br><br> Word form ?<br> Expanded form ?
Alenkinab [10]
Sixty eight thousand seven hundred and eight in word form

60000+8000+700+8 in expanded form
8 0
1 year ago
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