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shady1095
21.01.2022 •
Mathematics
Answer 18 & 19 for the brainliest answer
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Ответ:
18a: Step 1.
18b: She should have distributed the 3 into the parentheses, making it (3x + 12).
19a: Step 1
19b: She should have distributed the 7 to the -5 inside the parentheses, making it -35.
Step-by-step explanation:
In 18, the equation is x + 6 + 3(x + 4). The 3 is directly outside of the parentheses, and in math this you need to multiply them together. Think of it as 3 ⋅ ( x + 4 ). Yessenia forgot to do this and instead added the 3 and the 6 together. This is what makes step 1 incorrect.
To fix this, you would simply have to distribute the 3 properly and then combine like terms as needed.
In 19, the equation is x + 3 + 7(x - 5). In step 1 Sierra forgot to distribute to every value inside the parentheses, missing the -5.
To fix this, you would simply multiply 7 with -5 in order to complete the distribution, and then combine like terms as needed to get the final equation.
Ответ:
5/32 per Magazine
Step-by-step explanation:
pounds per magazine = pounds/magazines = (5/8)/4 = 5/32 pounds per magazine