3 years ago

Shari had six dimes and nine nickels.Did she have enough money to buy a $0.99 pack of gum

Mathematics

2 answers:

Flura [38]3 years ago

8 0

Answer:yes she does cauce she has 1.05

Step-by-step explanation:

pochemuha3 years ago

7 0

Answer:

yes

Step-by-step explanation:

she has $1.05

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Solve the simultaneous equations: 3a-2b=14 12a+9b=39

kirill [66]

Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1

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3 years ago

There are 56 trees in an apple orchard. They are arranged in equal rows. There are 8 trees in each row. How many rows of apple t

Amiraneli [1.4K]

56 ÷8=7

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3 years ago

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−7x−6y=2 7x+4y=−6 solve for x and y

ikadub [295]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}$

Step-by-step explanation:

$\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}$

$\mathrm{Substitute\:}x=-\frac{2+6y}{7}$

$\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}$

$\begin{bmatrix}-2-2y=-6\end{bmatrix}$

$\mathrm{For\:}x=-\frac{2+6y}{7}$

$\mathrm{Substitute\:}y=2$

$x=-\frac{2+6\cdot \:2}{7}\\\\x=-2$

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2 years ago

Look at the row of numbers. What number should come next? 8, 4, 2, 1, 1/2, 1/4, ?

Hitman42 [59]

Answer:

1/8

Step-by-step explanation

Every time the number is divided by 2 like 8 divided by 2 is 4 and 4 divided by 2 is 2 and so on so if you divide 1/4 by 2 it would be 0.125 and that in fraction would be 1/8.

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3 years ago

in class you earned 10 participation points one day, -14 the next, and 6 the following day. how many points did you earn that we

Katena32 [7]

Answer:

2 points

Step-by-step explanation:

10-14=-4

-4+6=2 or

10+6=16

16-14=2

8 0

3 years ago