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Mathematics

1 answer:

rosijanka [135]3 years ago

5 0

Answer:

B. 33 ft.

Logically speaking:

Given, 3 ft. = 20ft. ... 20/3= 6 and 2/3

flag is 6.6 times taller than the person.

Meaning, 5*6.6 = 33. (proved)

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A yogurt shop offers 3 different flavors of frozen yogurt and 15 different toppings. How many choices are possible for a single

matrenka [14]

For these kinds of problems you just multiply the two numbers so 15(3)=45
there are 45 choices possible

3 0

3 years ago

Read 2 more answers

A drink coaster in the shape of a circle has

egoroff_w [7]

The diameter of the coaster is 5 cm.

Step-by-step explanation:

Given,

The area of the circle = 19.63 sq inch

To find the diameter, we need to find the radius

Formula

The area of a circle with radius(r) = π $r^{2}$ sq cm

According to the problem,

π $r^{2}$ = 19.63

or, $r^{2}$ = $\frac{7 X 19.63}{22}$

= 6.2459

or, r = $\sqrt{6.2459}$ = 2.499 (approx)

= 2.5 cm

Hence the diameter of the circle = 2 × 2.5 cm = 5 cm

5 0

3 years ago

Elimination Method 7x=3y+45 4x+5y=19 (Show it step by step please!)

Fittoniya [83]

$\left\{\begin{array}{ccc}7x=3y+45&|\text{subtract 3y from both sides}\\4x+5y=19\end{array}\right\\\left\{\begin{array}{ccc}7x-3y=45&|\text{multiply both sides by 5}\\4x+5y=19&|\text{multiply both sides by 3}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}35x-15y=225\\12x+15y=57\end{array}\right}\qquad|\text{add both sides of the equations}\\.\qquad47x=282\qquad\text{divide both sides by 47}\\.\qquad \boxed{x=6}\\\\\text{Put the value of x to the second equation}$

$4(6)+5y=19\\\\24+5y=19\qquad\text{subtract 24 from both sides}\\\\5y=-5\qquad\text{divide both sides by 5}\\\\\boxed{y=-1}\\\\Answer:\ \boxed{x=6\ and\ y=-1}$