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2 years ago

I need the answers for 6 & 7 i will give brainlist:)!! PLEASEEEE

Mathematics

1 answer:

scZoUnD [109]2 years ago

6 0

Answer:

6: m = 25 + 5x; m is the money made and x is the amount of chores done.

6b: m(4) = 25 + 5(4) = 25 + 20 = 45; m(4) = 45

7: c = 175 - 6x; c is the amount of cards Mason owns, x is the amount of months

7b: c(7) = 175 - 6(7) = 175 - 42 = 133; c(7) = 133

To make the equation, just find the starting value and then add in the amount of change that occurs in that number.

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Someone help me with maths questions pls about pythagoras, ill give u brainliest

Marat540 [252]

Answer:

11.183 cm and 22.366 cm

Step-by-step explanation:

Lets call the 25 cm hypotenuse C and the other sides A and B.

B=2A

The Pythagorean theorem states that C^2=A^2+B^2 so:

25^2=A^2+B^2

substitute for B

25^2=A^2+(2A)^2

625=A^2+4A^2

625=5A^2

125=A^2

A=11.183 cm

B=22.366 cm

6 0

2 years ago

A railroad crew can lay 7 miles of track each day. They need to lay 203 miles of track. The length, L (in miles), that is left t

swat32

Answer:

It will take 29 days to lay the track

After 18 days the crew still has 77 miles of track left to lay

Step-by-step explanation:

203÷7

=29 days

L= 203 - 7(18)

L= 203 - 126

L= 77

7 0

3 years ago

What temperature is 24° warmer than-12 °C?

Lelu [443]

Answer:

12 °C

Step-by-step explanation:

x = -12 + 24
x = 12 °C

12 °C is 24°C warmer than -12°C

5 0

3 years ago

Find all the positive integers less than 1000 that are divisible by 2,3,5 and 7

user100 [1]

210, 420, 630, 840
multiples of 2*3*5*7

6 0

2 years ago

Read 2 more answers

The mean survivial time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years. Based on a parti

frutty [35]

Answer:

The time the patient expected to survive after diagnosis is 29 years.

Step-by-step explanation:

It is provided that the mean survival time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years.

That is,

$\mu=15\\\sigma=5$

An individual's predicted survival time is <em>a</em> = 2.8 standard deviations beyond the mean.

Compute the time the patient expected to survive after diagnosis as follows:

$X=\mu+a\sigma$

$=15+(2.8\times 5)\\\\=15+14\\\\=29$

Thus, the time the patient expected to survive after diagnosis is 29 years.

5 0

2 years ago