Solve the system of equations. {y=x−6 {3x+2y=8 Use the substitution method.

The maximum heart rate, in beats per minute, that you should achieve during exercise is 220 minus your age, 220 minus a. Your

polet [3.4K]

Answer:

a) Lower limit range = 119.7 ≈ 120

b) Upper limit range = 136.8 ≈ 137

Step-by-step explanation:

Given:

a) Lower limit range = $\frac{\textup{7}}{\textup{10}}\times(220-\textup{Age})$

Therefore,

For the given person of age 43 years old

substituting the value of age in the above equation, we get

Lower limit range = $\frac{\textup{7}}{\textup{10}}\times(220-\textup{49})$

or

Lower limit range = 119.7 ≈ 120 beats per minute

b) The upper limit range = $\frac{\textup{4}}{\textup{5}}\times(220-\textup{Age})$

Therefore,

For the given person of age 43 years old

substituting the value of age in the above equation, we get

Upper limit range = $\frac{\textup{4}}{\textup{5}}\times(220-\textup{49})$

or

Upper limit range = $\frac{\textup{4}}{\textup{5}}\times(220-\textup{49})$

or

Upper limit range = 136.8 ≈ 137 beats per minute

7 0

3 years ago

M<2, M<3 (find the measure of each angle)

Shkiper50 [21]

One of the triangles (that on the left, top) has 2 equal sides, and thus is isosceles. The angle immediately adjacent to and to the right of 110 degrees is 180-110 degrees, or 70 degrees, which means that angle 1 is also 70 degrees. The remaining angle is 180 degrees less 2(70 degrees), or 40 degrees; thus, angle 2, immediately adjacent to and to the right of this 40 degree angle, is 180-40, or 140 degrees. The triangle to the right and below the horiz. line has angle 40 degrees (using the principle of vertical angles); thus, angle 3 is 180-(40+90) degrees, or 50 degrees.

5 0

3 years ago

Read 2 more answers

If t=100, find 2t + 1

blagie [28]

Answer:

201

Step-by-step explanation:

I hope it's helpful for you

7 0

2 years ago

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