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3 years ago

PLEASE HELP ME I'M STUCK ON THIS QUESTION!!!!!!!!!!!!!!!!!!!!!!

1 answer:

galina1969 [7]3 years ago

3 0

We wish to know how much faster Grant rows than Arianna.

d=G-A and we want our answer is miles/hour so

d=(6mi/36min)(60min/hr)-(3520yd/20min)(mi/1760yd)(60min/hr)

d=10mph-6mph

d=4mph

So Grant rows 4 miles per hour faster than Arianna.

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Which figure can be formed from the net?

Radda [10]

I dont know if its 100% correct but I believe its this one

5 0

2 years ago

A large stamp book has 8 pages and each page has 8 stamps.A small stamp has 6 pages and each page has 4 stamps.If francois buy 1

IrinaVladis [17]

Answer:

Step-by-step explanation:

8*8=64

6*4=24

64+24=88

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4 years ago

What is the solution to sqrt 17-x=x+3? Show your work.

snow_lady [41]

Answer:

$x=1$

Step-by-step explanation:

Remember:

$(\sqrt[n]{a})^n=a\\\\(a+b)=a^2+2ab+b^2$

Given the equation $\sqrt{17-x}=x+3$ , you need to solve for the variable "x" to find its value.

You need to square both sides of the equation:

$(\sqrt{17-x})^2=(x+3)^2$

$17-x=(x+3)^2$

Simplifying, you get:

$17-x=x^2+2(x)(3)+3^2\\\\17-x=x^2+6x+9\\\\x^2+6x+9+x-17=0\\\\x^2+7x-8=0$

Factor the quadratic equation. Find two numbers whose sum be 7 and whose product be -8. These are: -1 and 8:

$(x-1)(x+8)=0$

Then:

$x_1=1\\x_2=-8$

Let's check if the first solution is correct:

$\sqrt{17-(1)}=(1)+3$

$4=4$ (It checks)

Let's check if the second solution is correct:

$\sqrt{17-(-8)}=(-8)+3$

$5\neq-5$ (It does not checks)

Therefore, the solution is:

$x=1$

3 0

3 years ago

The mean length of 7 childrens' index finger is 9.4cm. The mean length of 5 adults' index finger is 10.2cm. What is the mean len

Deffense [45]

Answer:

9.73 cm to 2 DP

Step-by-step explanation:

Total of the lengths involved = 7*9.4 + 5*10.2

= 116.8 cm

So the mean of the 12 fingers

= 116.8/12

= 9.73 cm to 2 DP.

3 0

2 years ago

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To multiply a decimal number by 1000 move the decimal point

KengaRu [80]

You'll have to move the decimal point to the right as many places as there are zeros in the factor,then you'll have to move the decimal point one step to the right (10 has one zero),and move the decimal point two steps to the right (100 has two zeros).

5 0

3 years ago

Read 2 more answers