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3 years ago

Question state in photo

Mathematics

2 answers:

vovangra [49]3 years ago

5 0

Answer:

I believe it is B

Step-by-step explanation:

3 out of 4 options to land on are less than 5

Mice21 [21]3 years ago

3 0

Answer:

B 3/4

Step-by-step explanation:

Total number of sections with equal area: 4

Number of sections with a number less than 5: 3

p(getting a number less than 5) =

= (number of sections with a number less than 5)/(total number of sections)

= 3/4

Answer: B 3/4

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Pete is purchasing a smartphone for $249.30. He gives the sales clerk 3 fifty-dollar bills, 4 twenty-dollar bills, and 4 five-do

Elza [17]

Answer:

the amount received in change is $0.70

Step-by-step explanation:

The computation of the amount received in change is shown below:

= Given amount - purchased amount

= (3 × 50 + 4 × 20 + 4 × 5) - $249.30

= (150 + 80 + 20) - $249.30

= 250 - 249.30

= $0.70

Hence, the amount received in change is $0.70

3 0

3 years ago

$750,000 is what percent of $3,000,000?<br> Please help

velikii [3]

Answer:

Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

(750000*100):3000000 =

75000000:3000000 = 25

Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000.

Step 4: In the same vein, $x\%=750000$x%=750000.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1).

$x\%=750000(2)$x%=750000(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%=

3000000

750000

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

100%=

750000

3000000

$\Rightarrow x=25\%$⇒x=25%

3 0

3 years ago

Simplify the expression.

Alja [10]

Answer:

-2r^3+4r^2+12r-4

Step-by-step explanation:

6r^3-2r^2+12r-4-8r^3+6r^2

(6r^3-8r^3)+(-2r^2+6r^2)+12r-4

simplify

-2r^3+4r^3+12r-4

4 0

4 years ago

element x is a radioactive isotope such that every 32 years, its mass decreases by half. given that the initial mass of the samp

VashaNatasha [74]

Answer:

the answer is 31.9 years

Step-by-step explanation:

initial mass, $M_{0}$ = 150 gram

half life, $t_{half\hspace{0.1cm}life}$ = 32 years

new mass = half of initial mass = M = 0.5 $M_{0}$

formula , M = $M_{0}$ $e^{\frac{\ln\frac{1}{2}}{t_{half} }\times x }$ where x is the number of years required.

therefore 0.5 $M_{0}$ = $M_{0}$ $e^{\frac{\ln\frac{1}{2}}{t_{half} }\times x } = M_{0} e^{-0.0217x}$

therefore -0.0217 x = $\ln{0.5} = -0.693$

therefore x = $\frac{-0.693}{-0.0217}$ = 31.942

8 0

3 years ago

What is the slope?<br>if possible can you explain?

Mandarinka [93]

Answer:

$m = \frac{4}{5}$

Step-by-step explanation:

The slope of a graph is also known as its gradient, which is the steepness of the graph.

If we are given two points on the line, we can find the slope by taking rise/ run, which is the ratio of the change in y-coordinate against the change in the x-coordinate. This can also be written as a formula:

$\boxed{slope = \frac{y1 - y2}{x1 - x2} }$

☆ (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate

In this question, we are given the equation of the line. This equation is already in the slope-intercept form (y= mx +c) since the coefficient of y is 1 and all the other terms are on the other side of the equal sign. In the slope-intercept form, m is the slope while c is the y-intercept.

m= ⅘ since the coefficient of x is ⅘ in the given equation (when the equation is in the slope-intercept form).

6 0

3 years ago