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GalinKa [24]
2 years ago
6

4) Tom is 4 years older than Bob, Evan is 10 years younger than Tom, Tucco is half of Evan's age, and Mary is 8 year

Mathematics
1 answer:
mel-nik [20]2 years ago
8 0

Answer:

if you find the age of bob the rest is easy

Step-by-step explanation:

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aul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt
vodomira [7]

Set up a system of equations:


\text{Total shirts bought}

x + y = 9


\text{Total cost}

10x + 7y = 72


x represents how many tee shirts were bought, and y represents how many long sleeve shirts were bought.


For the first equation, subtract y from both sides to get x by itself:


x = 9 - y


We'll now use substitution. Since x is equal to a value, we can substitute this value for the other equation:


10(9-y) + 7y = 72


Distribute the 10 to both terms in parentheses:


10 \times 9 = 90

10 \times -y = -10y


90 - 10y +7y = 72


Combine like terms:


-10y + 7y = -3y

90 - 3y = 72


Subtract 90 from both sides:


-3y = -18


Divide both sides by -3 to get y by itself:


y = 6


6 long sleeve shirts were bought.


Now you have a value for y. Input this value into the first equation:


x + 6 = 9


Subtract both sides by 6 to get x by itself:


x = 3


3 tee shirts were bought.


The answer is B. 3 tee shirts and 6 long sleeve shirts.

4 0
3 years ago
Read 2 more answers
Discuss the differences between the measurement of the surface area and the measurement of the volume of a right rectangular pri
yKpoI14uk [10]
Given: 
Right Rectangular Prism.
It has its length, width, and height.

Surface area of a right rectangular prism has this formula:
SA = 2 (wl + hl + hw)

Volume of a right rectangular prism has this formula
V = whl

Formula of Surface Area is different from Volume.

Surface area measures the area the whole rectangular prism surface. It computes for the area of all 6 faces that a right rectangular prism has.

Volume measures the area within the rectangular prism. It is the space that is enclosed within the rectangular prism.
5 0
2 years ago
52 thousandths in scientific <br> notation
In-s [12.5K]
The answer is,

"52 thousandths = 0.052

5.2 x 10^-2"
3 0
3 years ago
What is the value of the expression if z = 27?
Brut [27]

Answer:

12

Step-by-step explanation:

4 0
3 years ago
5^x+3=300<br>solve for X​
d1i1m1o1n [39]

Answer:  x=3.537715

Step-by-step explanation:

5x+3=300

5x+3+−3= 300+ −3

5x=297

Step 2: Solve Exponent.

5x=297

x=3.537715

Hope this helps :)

8 0
3 years ago
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