Evaluate the following expression if w = 9, x = 7, and y = 1. wx + 4

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Answer:

Step-by-step explanation:

plug in values for w and x. you would get 9*7+4, which is 67!

Slav-nsk [51]3 years ago

6 0

Answer:

Step-by-step explanation:

We are given the expression:

$wx+4$

and asked to evaluate when w=9, x=7, and y=1.

The expression does not contain the variable y, so we can disregard it.

However, the expression does have the variable x and w. We can substitute 9 in for w and 7 in for x.

$(9)(7)+4$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

First, multiply 9 and 7.

9*7=63

$63+4$

Next, add 63 and 4.

$67$

The expression wx+4 when evaluated for w=9 and x=7 is equal to 67.

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3 years ago

mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for

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mark must leave it for 5.5 months or 5 and half moths to gain 5600 in interest .

Step-by-step explanation:

Here we have , mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for the same length of time, We need to find how long must he leave it to gain 5600 in interest . Let's find out:

Let mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8% for time x months , So total interest gain is 5600 i.e.

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