Question

1. the given expression can be used to calculate the number of deg break the record temperature where 200 points is the top tempera

$200 - (15 + 20 - 3(5) + 8(4) + 10)$
how many points are needed to set the new record?
a. 62
b. 150
c. 138
d. -49
(handwritten steps: 200 - (15 + 20 - 15 + 8(4) + 10); 200 - (15 + 20 - 15 + 32 + 10); 200 - (35 - 15 + 32 + 10); 200 - (20 + 32 + 10); 200 - (52 + 10); 200 - 62)

Explanation:

Step1: Solve multiplications first

$3(5)=15$, $8(4)=32$

Step2: Substitute into the parentheses

$15 + 20 - 15 + 32 + 10$

Step3: Calculate inside parentheses

$15+20=35$; $35-15=20$; $20+32=52$; $52+10=62$

Step4: Subtract from 200

$200 - 62$

Answer:

c. 138