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svetlana [45]
3 years ago
14

Please help urgent 7th grade math question?! begging?

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0

Answer:

no. B 40x+30y=60 l think

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a stack of cards is placed next to a ruler, and the height of stack measured to be 3/4inches. how thick is one card
4vir4ik [10]

Total thickness of the stack of cards = 3/4 inch or 0.75 inch

In a full stack of cards, there are 52 cards.

Hence, the thickness of 52 cards = 0.75 inch.

To find the thickness of one card, we divide the total thickness with the total number of cards.

Thickness of one card = \frac{0.75}{52} = 0.014423 inch

1 inch = 2.54 cm

0.014423 inch is approximately equal to 0.34 cm.

Answer = 0.34 cm

7 0
3 years ago
Jackie is selling smoothies at a school fair. She starts the day with $15 in her cash box to provide change to her customers. If
nadezda [96]

the answer would be D

3 0
4 years ago
Read 2 more answers
1. Determine whether or not each of the following is a Binomial random variable. If it is not a Binomial random variable, provid
satela [25.4K]

Answer:

a) You roll a die 25 times. Let X be the number of times that you roll "3".

* Is a Binomial

b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season.

* Not a Binomial because probability of success is not constant

c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.

* Is a Binomial

8 0
3 years ago
At the beginning of spring, Caroline planted a small sunflower in her
elixir [45]

Answer:

After 10 weeks: 40 inches

Step-by-step explanation:

Equation

15 + 2.5w = h

15 = beginning height

2.5 = rate per week

w = weeks passed

h = total height

8 0
2 years ago
How do I do this.?.?.
viktelen [127]
108 = ( x)(48-x)
108 = 48x - x^2
48x -x^2 -108 = 0

I'm assuming you're doing solve the square right now, so you should be able to do the rest.
3 0
3 years ago
Read 2 more answers
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