Answer:
Step-by-step explanation:
Ryan works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.70 an hour for babysitting. Therefore, the expression for the total amount that he would earn if he mows lawns for x hours and babysits for y hours would be
8.2x + 7.7y
Therefore, the amount that he would earn for 3 hours of mowing and 7hours of babysitting is
(8.2 × 3) + (7.7 × 7)
= 24.8 + 53.9
= $78.7
Answer:
A suitable estimate of all families who own their home is 42%.
Step-by-step explanation:
42% reported that they own their home.
This means that the sample proportion is of 42%. So that an estimate for the percentage of all families who own their home is of 42%., and that the first option is correct.
The Venn diagram is given below. Then the number of students who offer only Twi will be 9.
<h3>What are Sets?</h3>
Sets are groups of clearly specified components. The number of items in a finite set is denoted by a curly bracket.
In a class of 39 students, 25 offer Fante and 19 offer Twi.
Five students do not offer any of the two languages.
The Venn diagram is given below.
The number of students who offer both Fante and Twi will be
⇒ 25 + 19 - (39 - 5)
⇒ 44 - 34
⇒ 10
Then the number of students who offer only Twi will be
⇒ 19 - 10
⇒ 9
More about the sets link is given below.
brainly.com/question/8053622
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22 play the trumpet
11 play the trombone
8 play the saxophone
