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Lesson 15
EUREKA MATH
^(2)
b. Draw a line that fits the data in the scatter plot and find an equation for the line. Round the slope of the line to the nearest hundredth if needed.
c. Ava caught a fish on the second day that was 499 millimeters long. Use the equation of your line to predict the weight of the fish.
d. Ava caught another fish on the second day. This fish was 519 millimeters long. Use your equation to predict the weight of the fish.
e. The fish that was 519 millimeters long weighed 1575 grams. How well did your line predict the actual weight? Explain.

Lesson $15$ $\newline$ EUREKA MATH ${ }^{2}$ $\newline$ b. Draw a line that fits the data in the scatter plot and find an equation for the line. Round the slope of the line to the nearest hundredth if needed. $\newline$ c. Ava caught a fish on the second day that was $499$ millimeters long. Use the equation of your line to predict the weight of the fish. $\newline$ d. Ava caught another fish on the second day. This fish was $519$ millimeters long. Use your equation to predict the weight of the fish. $\newline$ e. The fish that was $519$ millimeters long weighed $1575$ grams. How well did your line predict the actual weight? Explain.

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Find a value using two-variable equations: word problems

Full solution

Q. Lesson

15

\newline

EUREKA MATH

{ }^{2}

\newline

b. Draw a line that fits the data in the scatter plot and find an equation for the line. Round the slope of the line to the nearest hundredth if needed.

\newline

c. Ava caught a fish on the second day that was

499

millimeters long. Use the equation of your line to predict the weight of the fish.

\newline

d. Ava caught another fish on the second day. This fish was

519

millimeters long. Use your equation to predict the weight of the fish.

\newline

e. The fish that was

519

millimeters long weighed

1575

grams. How well did your line predict the actual weight? Explain.

Identify given value: Identify the given value for $s$ , which is the number of additional sticks of butter. Here, $s = 5$ .
Substitute into equation: Substitute $s = 5$ into the equation $c = s + 10$ to find the total number of cakes $c$ . $\newline$ $c = 5 + 10$
Perform addition: Perform the addition to solve for $c$ . $c = 15$

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