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marta [7]
4 years ago
15

What is the value of k? -k+78=98-20

Mathematics
1 answer:
Jlenok [28]4 years ago
6 0

Answer:

k=0

Step-by-step explanation:

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At Rafael's auto shop, it takes him 15 minutes to do an oil change and 24 minutes to do a tire change. Let x be the number of oi
irakobra [83]

Answer:

  • 5x + 8y < 20

Step-by-step explanation:

<u>Oil change</u>

  • Time = 15 min
  • Number = x

<u>Tire change</u>

  • Time = 24 min
  • Number = y

Time limitation = 60 min

<u>Required inequality:</u>

  • 15x + 24y < 60

<u>Simplified</u>

  • 5x + 8y < 20
7 0
3 years ago
Rafeal wants to know if there is a single transformation that will move trapezoid JKLM onto trapezoid PQRS Below
aliina [53]

A. A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R.

Step-by-step explanation:

Since both the trapezoids, trapezoid JKLM and PQRS are congruent, we can do any transformation, may be rotation, reflection and translation.

A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R is the true statement others are incorrect statements.

When the Preimage is rotated 90° counterclockwise rotation, then its coordinates (x,y) changed into (-y,x)  

8 0
3 years ago
Which expression is equivalent to RootIndex 3 StartRoot x Superscript 5 Baseline y EndRoot?
IRINA_888 [86]

Answer:

The answer is "x^{\frac{5}{3}}y^{\frac{1}{3}}"

Step-by-step explanation:

Given value:

\to \bold{ \sqrt[3]{x^5y} }

\to \sqrt[3]{x^5y} =(x^5y)^{\frac{1}{3}}

formula:

\bold{(a.b)^n=a^nb^n}

\to (x^5y)^{\frac{1}{3}}= x^{\frac{5}{3}}y^{\frac{1}{3}}

The final value is:  \boxed{\boxed{ x^{\frac{5}{3}} \cdot y^{\frac{1}{3}}}}

7 0
3 years ago
Read 2 more answers
20 POINTS!!! PLS COME AND LOOK!!! I NEED YOU GENIUSES!!! I WILL GIVE BRAINLIEST!!!!! AT LEAST COME AND LOOK!!!! WILL FOREVER BE
iVinArrow [24]

Answer:

9) y>0 or y<−14 10) Each artwork sold for $34.4

Step-by-step explanation:

#9 is fairly easy, just plug in a calc and pull out ans.

#10 so he needs to make $300 + $44 in total to recover everything as he wants $300 more in profit. set up the equation:

$300 (Profit) + $44 (Initial) = 10 ( # of paintings) x (how much to be sold for

6 0
3 years ago
Please help ill give brainliest if correct
yan [13]

Answer:

130

Step-by-step explanation:

ABC = 180 - 120 = 60

ACB = 180 - 70 - 60 = 50

ACD = 180 - 50 = 130

I hope I've helped you.

3 0
2 years ago
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