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nignag [31]
3 years ago
8

In 2 years, I will be twice as old as I was 5 years ago. My little brother is 3 years younger than I am. Our baby sister is 2 ye

ars younger than he is.
Mathematics
1 answer:
beks73 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

let my present age=x

then 2(x-5)=x+2

2x-10=x+2

2x-x=2+10

x=12

my age=12 years

age of brother =12-3=9 years

age of sister= 9-2=7 years.

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The dance committee of Pine Bluff Middle School earns \$72$72dollar sign, 72 from a bake sale and will earn \$4$4dollar sign, 4
Brut [27]

Answer:

The correct answer is 72 + 4 × x \geq 400.

Step-by-step explanation:

The dance committee of Pine Bluff Middle School earns $72 from a bake sale and will earn $4 for each ticket they sell to the Spring Fling dance.

The dance will cost $400.

Let x number of tickets the committee could sell.

Total money earned is 72 + 4 × x.

The committee should have some left over money also after spending for the dance which costs $400.

Thus the inequality to determine the number of tickets the committee could sell to have money left over after they pay for this year's dance is given by,

72 + 4 × x \geq 400.

3 0
3 years ago
Read 2 more answers
A customer desires to mix her own concrete. The clerk knows that the ratio of cement to sand to gravel is 1:3:4. If the customer
Aleks [24]

Answer:

The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Step-by-step explanation:

Given as :

The ratio of cement to sand to gravel = 1 : 3 : 4

The total quantity of dry mix required = 1000 pounds

Let The quantity of cement required = 1 × x pounds

The quantity of sand required = 3 × x pounds

The quantity of gravel required = 4 × x pounds

So, According to question

The total quantity of dry mix required = The quantity of cement required + The quantity of sand required + The quantity of gravel required

Or, x + 3 x + 4 x = 1000 pounds

Or, 8 x = 1000 pounds

∴  x = \frac{1000}{8}

I.e x = 125

So , The quantity of cement required = 1 × 125 pounds = 125 pounds

The quantity of sand required = 3 × 125 pounds = 375 pounds

The quantity of gravel required = 4 × 125 pounds = 500 pounds

Hence The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Answer

8 0
3 years ago
I need help with this :(
fiasKO [112]

‍♀️‍♀️‍♀️‍♀️‍♀️‍♀️‍♀️‍♀️

4 0
3 years ago
Read 2 more answers
Niko has an orange tree and a lemon tree in his backyard the orange tree is 7 feet tall 9 inches tall the lemon tree is 1 yard 2
Dennis_Churaev [7]
We can solve this by converting both measurements to inches.

Orange tree:
1 foot=12 inches
7 feet=84 inches
84 inches + 9 inches = 93 inches total

Lemon tree:
1 yard=3 feet=36 inches
2 feet=24 inches
36 inches + 24 inches + 5 inches=65 inches total

Therefore, the orange tree is taller than the lemon tree.
8 0
3 years ago
I have a bag of marbles. 4 are blue, 3 are orange, 2 are red, and 1 is purple.
Ainat [17]

Step-by-step explanation:

most likely be drawn: blue

pulling orange: 3/10

pulling red: 2/10 or 1/5

pulling purple: 1/10

pulling white: 0

8 0
3 years ago
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