9. $12,50
10. $17.50 (ripoff lol)
11. Clearly Alastair, they got some strong muscles
12. Taryn would be charging $15 an hour and alastair $24.50 an hour. $735 divided by $15 an hour equals 49 hours for Taryn. $735 divided by $24.50 an hour equals 30 hours for Alastair.
13a. 5 minutes to make a sculpture and 7 balloons in a sculpture
13b. Tomas uses 1.4 balloons a minute
13c. 14 balloons (tip. when multiplying a decimal by 10, 100, etc, just move the decimal for the number of zeroes.) 1.4x10 = 14. Simply move the decimal to the right one because there is one zero in 10.
13c blanks. The first blank is 1.4 and the second blank is 14
14. 8 pound bag of dog food is a way better deal!
15. $10.50
16a. The price for 25 whistles is $0.85 each, 50 whistles for $0.72 each, or 80 whistles for $0.75 each. The difference between the highest number and lowest number is $0.13 or 13 cents.
16b. $0.34 or 34 cents
16c. She should order 80 Kazoos <em>not a meme reference</em>
I hope all of this helped! It took forever!
Hey there!
Let's substitute the "bullet point" as a "multiplication symbol"
Problem becomes:
Problem becomes =
Good luck on your assignment and enjoy your day!
~
Answer:
what ummmmmm
Step-by-step explanation:
4
Subtract 2(first equation) from the second, and 3(first equation) from the third to eliminate <em>x</em> :
(2<em>x</em> + 3<em>y</em> + <em>z</em>) - 2(<em>x</em> + <em>y</em> + <em>z</em>) = 16 - 2*9
<em>y</em> - <em>z</em> = -2
(3<em>x</em> - 4<em>y</em> + 2<em>z</em>) - 3(<em>x</em> + <em>y</em> + <em>z</em>) = 1 - 3*9
-7<em>y</em> - <em>z</em> = -26
Now subtract either equation with <em>y</em> and <em>z</em> from the other to eliminate <em>z</em>. If we take the first from the second, we get
(-7<em>y</em> - <em>z</em>) - (<em>y</em> - <em>z</em>) = -26 - (-2)
-8<em>y</em> = -24
<em>y</em> = 3
Then
<em>y</em> - <em>z</em> = 3 - <em>z</em> = -2
<em>z</em> = 5
And lastly,
<em>x</em> + <em>y</em> + <em>z</em> = <em>x</em> + 3 + 5 = 9
<em>x</em> = 1
Answer:
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Step-by-step explanation: