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4 years ago

7

Allison has five times as many baseball cards and football cards in all she has 120 baseball and football cards how many basebal

l cards does Alison have

1 answer:

ValentinkaMS [17]4 years ago

6 0

I think you do 120 divided by 5, but I could be wrong.

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Solve the system of equations.

guajiro [1.7K]

Answer:

<u>Option b. (x = 3, y = 20, z = -14)</u>

Step-by-step explanation:

Given:

2x + 2y + 3z = 4

5x + 3y + 5z = 5

3x + 4y + 6z = 5

Solve using Cramer’s rule

∴ $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] =\left[\begin{array}{ccc}4\\5\\5\end{array}\right]$

∴A = $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] = -1$

Ax = $\left[\begin{array}{ccc}4&2&3\\5&3&5\\5&4&6\end{array}\right] = -3$

Ay = $\left[\begin{array}{ccc}2&4&3\\5&5&5\\3&5&6\end{array}\right] =-20\\$

Az = $\left[\begin{array}{ccc}2&2&4\\5&3&5\\3&4&5\end{array}\right] = 14$

∴ x = Ax/A = -3/-1 = 3

y = Ay/A = -20/-1 = 20

z = Az/A = 14/-1 = -14

<u>So, the answer is option b. (x = 3, y = 20, z = -14)</u>

4 0

4 years ago

Find the measure of m∠A (inside the triangle).

amid [387]

Answer:

85 degrees

Step-by-step explanation:

180=x+4x-20

180=5x-20

200=5x

x=40

C=2(40)+5

C=80+5

C=85

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3 years ago

Jane has $30 and is saving at the rate of 57 per week. Susan has $50 and is saving at the rate of $3 per week.

True [87]

The answer would be 5 and the work is down below

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4 years ago

Molly has biweekly gross earnings of $839.52. By claiming 1 more withholding allowance, Molly would have $16 more in her take ho

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The answer is C)3 ....

Hope it helps!

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4 years ago

Choose the correct simplification of the expression (c2)9. <br> c18 <br> c11 <br> c512<br> c

lbvjy [14]

The answer is C18 because just like in algebra you'll multiply the number the two numbers in and out of the paranthisis .

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3 years ago

Read 2 more answers