Answer:
x= 3.43
Step-by-step explanation:
First, use the distributive property and multiply 3 by x and 3 by 2:
3x + 6
next use the distributive property again and multiply 4 by x and -5:
4x - 20
Combine Like terms: 3x + 6 + 4x - 20
3x + 4x = 7x
6 - 20 = -14
Now Add 14 to both sides: 7x - 14 = 10
10 + 14 = 24
Now divide 7 by both sides: 7x = 24
24 / 7 = 3.428571429 = 3.43
This is how you set up a percent of error proportion:
<u>Amount of error</u> <u>x(Unknown percent)</u>
Actual value = 100(Percents are out of hundreds)
So if you fill it in, it becomes <u>4</u> <u>x
</u> 80 =100
Cross multiply, 400= 80x.
Solve.
x=5 so percent error is 5%<u>
</u>
Answer:
she can make 8 batches
Step-by-step explanation:
In this question , we are concerned with calculating the number of batches of cupcakes keith can make.
To make a batch, 5/8 of a cup is required.
Now she has 5 cups. The number of batches she can make will be 5/(5/8) = 5 * 8/5 = 8
The answer is the 2nd option of 60 degrees.
Answer:
Step-by-step explanation:
14 x 8 = 112
