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Ierofanga [76]
3 years ago
5

If 7 x 9 equals 15 , what is the value of 7x +1?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
3 0
Answer = 8/7

You add 1 to both sides
Then simplify 7+1 to 8
Divide both sides by 7
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10. Make Sense and Persevere The flag of the
kumpel [21]

Answer:

  • s=\frac{P}{3}
  • Dimensions of the flag:

       lenght=6.65\ ft\\\\width=3.5\ ft

  • Area of the flag: 23.275\ ft^2

Step-by-step explanation:

<em><u>The missing figure of the exercise is attached.</u></em>

<em><u /></em>

We know that the perimeter of the triangle is given by:

P= 3s

Where "s" is the side lenght of the triangle.

Solving for "s", we get:

s=\frac{P}{3}

Therefore, if the perimeter of the triangle is 126 inches, its side length is:

s=\frac{126\ in}{3}\\\\s=42\ in

 Since  1\ ft=12\ in, we know that "s" in feet is:

s=(42\ in)(\frac{1\ ft}{12\ in})=3.5\ ft

The area of a rectangle can be calculated with this formula:

A=lw

Where "l" is the lenght and "w" is the width

We can observe in the figure that the lenght and the width of the flag are:

l=1.9s\\w=s

Then, the dimensions of the flag are:

l=1.9(3.5\ ft)=6.65\ ft\\w=3.5\ ft

And the area is:

A=(6.65\ ft)(3.5\ ft)=23.275\ ft^2

3 0
3 years ago
Estimate 49% of 162. Use mental math to calculate 49% of 162. ???
svet-max [94.6K]
if\ 50\%\ of\ 162\ is\ 81\ so\ 49\%\  of\ 162\ is\ about\  79-80
3 0
3 years ago
Read 2 more answers
A rocket fired straight up is tracked by an observer from the ground a mile away. (a) show that when the angle of elevation is t
Dahasolnce [82]
Let the height of the rocket be x, then
tan theta = h / 1 mile
h = 1 tan theta miles

But 1 mile = 5280 feets

Therefore, the height in feet = 5280 tan theta.
4 0
3 years ago
Can someone please answer. There is a picture. There is only one problem. Thank you so much!!!
pickupchik [31]
Answer (0,-3 and 0,3)
7 0
3 years ago
plzzzzz help me I can fail algebra. on Sunday, Sean ran 5/7 of the distance he ran on Thursday (9/10). fill in the number of mil
ohaa [14]

Answer:

9/14

Step-by-step explanation:

You multiply the two fractions. So 5/7*9/10, you just multiply across. This would give you 45/70. Then, after simplifying, this fraction is 9/14. So, Sean ran 9/14 of a mile on Sunday. Hope this helps, Sorry if im wrong!!

7 0
4 years ago
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