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Dahasolnce [82]
4 years ago
11

A box is filled with 9 blue cards, 4 green cards, and 3 yellow cards. A card is chosen at random from the box. What is the proba

bility that it is a blue or a yellow card? Write answer as a fraction.
Mathematics
2 answers:
VLD [36.1K]4 years ago
6 0
12/16 which would reduce to 6/8 which can also reduce further to 3/4! :) so the final answer is 3/4.
sp2606 [1]4 years ago
4 0
Start by finding the total sum of cards in the box.

9+4+3= 16

Now what we are looking for is how many cards we are looking for to pull (yellow or blue).

9+3 =12

We could pull 12 cards that would be yellow or blue out of a box of 16 cards.

Our answer would be 12/16 simplified to 3/4.
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Lisa is 4 years older than three times her brother Sammy’s age.
Alina [70]
The correct choice is d
4 0
4 years ago
Read 2 more answers
Z=a/b+c/d solve for A
PilotLPTM [1.2K]

Answer: a=\frac{b(zd-c)}{d}

Step-by-step explanation:

Having the following equation given in the exercise:

z=\frac{a}{b}+\frac{c}{d}

You can solve for "a" following this procedure:

1. You can apply the Subtraction property of equality and subtract \frac{c}{d} from both sides of the equation:

z-(\frac{c}{d})=\frac{a}{b}+\frac{c}{d}-(\frac{c}{d})\\\\z-\frac{c}{d}=\frac{a}{b}

2. Now you must subtract the terms on the left side of the equation. Notice that the Least Common Denominator is "d". Then:

\frac{zd-c}{d}=\frac{a}{b}

3. Finally, you can apply the Multiplication property of equality and multiply both sides of the equation by "b". So, you get:

(b)(\frac{zd-c}{d})=(\frac{a}{b})(b)\\\\a=\frac{b(zd-c)}{d}

6 0
3 years ago
This diagram shows the dimensions of a plastic tab used in a toy.
aniked [119]

Answer:

2450 mm³

Step-by-step explanation:

(15×10×7) + [(40+10)×4×7]

2450

7 0
3 years ago
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4. Five hamburgers and two French fries together contain 2160 calories, while four hamburgers and five French fries contain 2680
ivanzaharov [21]

Answer:

Hamburger is 320 calories. Pack of french fries is 280 calories

Step-by-step explanation:

Represent Hamburgers as H and pack of French Fries as P then set up the equations

5H+2P=2160

4H+5P=2680

Multiply the first equation by 5

25H+10P=10,800

Multiply the second by 2

8H+10P=5360

Subtract the first equation by the second

25H+10P=10,800

-

8H+10P=5360

=

17H=5440

H=320

One hamburger is 320 calories.

Plug in 320 for H

5(320)+2P=2160

1600+2P=2160

2F=560

F=280

One pack of french fry is 280 calories

6 0
2 years ago
Jess observed that 60% of people at the mall shopped for clothes. if 2500 people did not shop for clothes the number of people w
kakasveta [241]

2500 \times 40  \div 60 = 3750
4 0
4 years ago
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