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3 years ago

PLEASE HELP I NEED THIS DONE ASAP! ILL MAKE BRAINLIST

Mathematics

2 answers:

olganol [36]3 years ago

5 0

Answer:

Step-by-step explanation:

i) x=-14

ii) y=-7

iii) p=6

iv) f=6

Brrunno [24]3 years ago

3 0

Answer:

i) 7x + 8 = -90

<=> 7x = -98

<=> x = -98/7

<=> x = -14

ii) 5y - 4 = 2y - 25

<=>3y = -21

<=> y = -21/3

<=> y = -7

iii) 4(p + 3) = 36

<=> p + 3 = 36/4

<=> p + 3 = 9

<=> p = 9 - 3

<=> p = 6

iv) 2 (4f + 3) = 3 (2f + 6)

<=> 8f + 6 = 6f + 18

<=> 2f = 12

<=> f = 12/2

<=> f =6

Hope this helps!

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If a marble is randomly chosen from a bag that contains exactly 8 red marbles, 6 blue marbles, and 6 white marbles. What is the

frozen [14]

Answer:

Step-by-step explanation:

so theres 8 red marbles, 6 blue marbles, and 6 white marbles so that makes

8 + 6 + 6 = 20 marbles in total

the probability of the marble being white is 6/20 or 3/10

so the probabilty of the marble NOT being white is 1 - (3/10) = 7/10

8 0

2 years ago

Ice has a density of 0.92 g/cm3. What is the volume of 100 grams of ice? If the ice completely melted, what would the volume of

kicyunya [14]

Hello!

To find the volume of the water, we would need to use the density formula. The density formula is d = m/V.

In this formula, d is the density, m is the mass and V is the volume.

1. To find the volume of 100 grams of ice, we substitute the appropriate values into the formula and solve for the volume using basic algebra.

0.92g/cm³ = 100g/V (multiply both sides by V)

0.92g/cm³ · V = 100g (divide both sides by 0.92g/cm³)

V = 108.69 cm³.

The volume of 100 grams of ice is about 108.69 cm³.

2. To find the volume of the completely melted ice, we would use the same formula, but the density is now 1.00 g/mL.

1.00g/mL = 100g/V (multiply both sides by V)

1.00g/mL · V = 100g (divide both sides by 1.00g/mL)

V = 100 mL

Therefore, the volume of the melted ice is 100 mL.

<u>Final answers</u>:

108.69 g/cm³
100 mL

8 0

3 years ago

How you write 980,000 in scientific notation?

MatroZZZ [7]

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer: 9.8 × 10 (4 squared)

3 0

2 years ago

Suppose you are determining the growth rate of two species of plants. Species A ls 25 cm tall and grows 3 cm per month. Species

exis [7]

Answer: Last Option

$H (m) = 25 + 3m\\H (m) = 10 + 8m$

Step-by-step explanation:

The initial height of the plant of species A is 25 cm and grows 3 centimeters per month.

If m represents the number of months elapsed then the equation for the height of the plant of species A is:

$H (m) = 25 + 3m$

For species B the initial height is 10 cm and it grows 8 cm each month

If m represents the number of months elapsed then the equation for the height of the plant of species B is:

$H (m) = 10 + 8m$

Finally, the system of equations is:

$H (m) = 25 + 3m\\H (m) = 10 + 8m$

The answer is the last option

8 0

3 years ago

a customer buys a diiferent book that has an original selling price of $38 the books is discounted 25% the customer must pay a 6

Nimfa-mama [501]

Answer: 30.21$
Explanation:
1. 38• 0.25(25%)=28.50
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Hope this helps. If it’s correct please tell me.

7 0

2 years ago