I need help with these...

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

All you have to do is do the distributive property. So, for the first one you would do 5 times x which equals 5x and then you would do 5 times 4 which equals twenty. All you are left with is the addition sign. Your full equation now would be 5x+20

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Kevin delivers newspapers in his town every morning. The amount he earns from delivering newspapers is given by y = 30x + 18, wh

Marina CMI [18]

Y=mx+b, b=y-intercept (value of y when x=0) so if:

y=30x+18

He earns 18 cents if he does not make any deliveries.

5 0

3 years ago

Max is 135 centimeters tall he is 18 centimeters taller than Rita Rita is 30 centimeters shorter than Jan how tall is jan.

tigry1 [53]

135 - 18 = 117 cm
Rita = 117 cm tall

117 cm + 30 = 147 cm

Jan is 147 cm tall.

5 0

4 years ago

A man left rs 1,800,000 as inheritance.his heirs are 6 daughters and 2 sons.find the share of each heir

egoroff_w [7]

Answer:$225,000 each

Step-by-step explanation: Assuming that they each get an equal share of the inheritance, there are 8 shares of the inheritance so we divided the $1.8m by 8 which equals $225,000 each.

3 0

2 years ago

Write the equation, in slope-intercept form, of the line passing through the origin and the point $(-4,3)$.

netineya [11]

If the equation is passing trough the origin, it will be passing trough the point (0,0). We now for our problem that the equations is also passing trough the point (-4,3). So, our line is passing trough the points (0,0) and (-4,3). To write the equation in slope-intercept form, first, we need to find its slope $m$ . To do that we are going to use the slope formula: $m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ .
From our two points we can infer that $x_{1}=0$ , $y_{1}=0$ , $x_{2}=-4$ , $y_{2}=3$ . Lets replace those values in the slope formula:
$m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$
$m= \frac{3-0}{-4-0}$
$m= \frac{3}{-4}$
$m=- \frac{3}{4}$

Now that we have our slope, we can use the slope-intercept formula:
$y-y_{1}=m(x-x_{1})$
$y-0=- \frac{3}{4} (x-0)$
$y=- \frac{3}{4} x$

We can conclude that the equation of the line passing trough the points (0,0) and (-4,3) is $y=- \frac{3}{4} x$ .

8 0

3 years ago

What is the approximate area of the sector given 1.6 radians with diamator of 9

pantera1 [17]

Area of a circumference=π*r²for diameter=21.2 cm---------> r=10.6 cmA=π*10.6²--------> A=π*112.36 -------> A=352.81 cm²if 2π radians (full circumference) has an area of -----------------> 352.81 cm² 3π/5 radians-------------------------------------> XX=[(3π/5)*(352.81)]/2π---------> X=105.84 cm²

6 0

3 years ago