Step-by-step explanation:
let w be the cost of a bottle of water and p be the cost of a bag of pretzels
"2 bottles of water and 3 bags of pretzels is $7.05" can be written as
2w + 3p = 7.05 ------------- eq.1
"The cost of a bag of pretzels is $1.35" can be written as
p = 1.35 ------------- eq 2
Together, eq 1 and eq 2 make up your system of equations
To solve, take eq 2 and substitute this value int eq 1
2w + 3 (1.35) = 7.05
2w + 4.05 = 7.05
2w = 7.05 - 4.05
2w = 3
w = 1.5
Hence the cost of a bottle of water is $1.50
Answer:
His car's speed rate to the nearest thousandth of an hour is 100.489
Step-by-step explanation:
First: This is the only step, round the speed rate to the nearest thousandth:
When rounding always look at the place value they're telling you to round to and the place value to the right of it. Since, the question wants us to round to the nearest thousandth, look at the thousandths place but more specifically the place value to its right. The thousandths is the third digit behind the decimal point and the one to its right would be the fourth.
100.4893
So, if the number to the thousandths' right is less than 5 turn that number into a zero and keep the rest of the number the same. If the number is greater than or equal to 5 round up by making the number in the thousandths place a digit bigger.
Since 3 is smaller than 5, we'll turn the 3 into a zero and keep the rest the same.
100.4890
Since the zero is behind the decimal point and it is the number farthest to the left we can take it out.
100.489
Thank you for reading
Topic: Rounding, Place Value
Answer:
4 2/8
Step-by-step explanation:
<em>See</em><em> </em><em>above</em><em> </em><em>graph</em>
I am joyous to assist you anytime.
I know these numbers from a triangle because 24+30=54 and 6square root 43 is about 39
