(b) Graph the equations in the system.
(c) Use your graph to estimate how much each item cost.
Answer: 1 drink refill is $0.95 and the egg breakfast is $6.50
2 r + b = 8.40
3 r + b = 9.35
$9.35-$8.40 =$0.95 then take .95x2 to get 1.90 and 8.40-1.90 to get the egg breakfast or $6.50
Answer:
43.75% students were participated last year.
Step-by-step explanation:
We have been given that last year 7/16 of all students at a school participated in the science fair.
Let us suppose the total number of students were x. Then, number of students participated last year is given by
Hence, the percentage of the students participated last year is given by
Therefore, 43.75% students were participated last year.
Step-by-step explanation:
the volume of a cylinder is
ground area × height
the ground area is a circle, and the area of a circle is
pi×r²
with r being the radius, which is always half of the diameter.
so, in our case
r = 5.5/2 = 2.75 cm
height = 20 cm
so, the volume of the cylinder is
pi×2.75² × 20 = pi×7.5625×20 = 475.1658889... cm³
the volume of a cube is
(side length)³
and the side length of a cube is therefore the cubic root of the volume.
now the volume of the cube has to be at least a large as the volume of the cylinder to be able to contain all the water from the cylinder.
so, the side length has to be at least the cubic root of that volume (475.1658889... cm³).
which is 7.803361957... cm.
Answer:
40 dimes
Step-by-step explanation:
B.10 square root over 8
C.5 square root over 4
D.4 square root over 5
The number √80 in simplified radical form is 4√5. Therefore, the correct answer is option D.
The given number is √80.
Radical form is the expression that involves radical signs such as square root, cube root, etc instead of using exponents to describe the same entity.
Here, factors of number 80 are 2×2×2×2×5
= √16×5
= 4√5
Therefore, the correct answer is option D.
Learn more about the radical form here:
brainly.com/question/27272065.
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