Which of these strategies would eliminate a variable in the system of equations?
1 answer:
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Answer:
376 square centimeters
Step-by-step explanation:
When doubled, the new length is 5*2=10 cm, new width is 4*2=8 cm, and new height is 3*2=6 cm.
The surface area of a rectangular prism is given by :
Where l is length, w is width, and h is height
Plugging in the new values we get:
The surface area of the enlarged prism = 376 cm^2
Answer:
Natalie have left with 5 beads.
Step-by-step explanation:
Given:
Natalie had 64 beads. She used 24 beads to make a bracelet. She used 7/8 of the remaining beads to make a necklace.
Now, to find the beads does Natalie have left.
<em>Total beads Natalie had = 64 beads.</em>
<em>And beads she used to make a bracelet = 24 beads</em>.
So, the remaining beads are =
Now,<em> the beads she used to make a necklace</em> =
=
=
=
Hence, the beads Natalie have left = remaining beads - beads used to make necklace.
Therefore, Natalie have left with 5 beads.
Given:
The dotted boundary line passes through the points (-3,-8), (1,-2) and (9,10).
Above line is shaded.
To find:
The inequality for the given graph.
Solution:
Consider any two points on the line. Let the two points are (1,-2) and (9,10). So, the equation of the line is:
Multiply both sides by 2.
Above line is shaded and the boundary line is a dotted line. So, the sign of inequality must be >.
This inequality is not in the equations. So, multiply both sides by -1 and change the inequality sign.
Therefore, the correct option is D.