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satela [25.4K]
3 years ago
15

Bill scored 78, 63, 81, 86, and 74 on the first five math tests. Round each score to the nearest 10 to find an estimate of the t

otal points Bill scored. A. 320 B. 340 C. 360 D. 380\
Mathematics
2 answers:
telo118 [61]3 years ago
4 0

Answer:

D. 380

Step-by-step explanation:

Round all test results to the nearest ten.

78 -> 80

63 -> 60

81 -> 80

86 -> 90

74 -> 70

--

Add the numbers together.

80+60+80+90+70=380

The total points Bill scored is <u>380.</u>

shutvik [7]3 years ago
4 0

Answer:

The answer is D

Step-by-step explanation:

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Write down a fraction whose value lies between 3 and 4; whose denominator is a multiple of 5; whose numerator is a multiple of 1
slamgirl [31]

Answer:

  33/10 and 55/15

Step-by-step explanation:

Possible denominators that are multiples of 5 less than 17 are 5, 10, 15.

Corresponding numerator ranges are [15, 20], [30, 40], and [45, 60]. In only two of these ranges are there any multiples of 11.

  33 in [30, 40]

  55 in [45, 60]

So, there are only two possible fractions meeting your requirement:

  33/10 and 55/15

6 0
3 years ago
Does the point (4, 0) satisfy the equation y = –5x + 4?
Arlecino [84]

Answer:

no

Step-by-step explanation:

y = –5x + 4

Substitute the point into the equation

0 = -5(4) +4

0 = -20+4

0 = -16

This is not true so it is not a solution to the equation

4 0
3 years ago
Read 2 more answers
At the start of the year, 15 chameleons were introduced into a zoo. The population of chameleons is expected to grow at a rate o
bearhunter [10]

Answer:

option-B

Step-by-step explanation:

We are given

At the start of the year, 15 chameleons were introduced into a zoo

so, P_0=15

The population of chameleons is expected to grow at a rate of 41.42% every year

so, r=0.4142

and x represents the number of years since the chameleons were introduced into the zoo

now, we can set equation to find total population

and we get

P(x)=P_0(1+r)^x

now, we can plug values

P(x)=15(1+0.4142)^x

P(x)=15(1.4142)^x

Average rate of change between 2 years and 4 years:

we can use formula

A_1=\frac{P(4)-P(2)}{4-2}

now, we can plug values

A_1=\frac{15(1.4142)^{4}-15(1.4142)^{2}}{4-2}

A_1=14.99914

Average rate of change between 4 years and 6 years:

we can use formula

A_2=\frac{P(6)-P(4)}{6-4}

now, we can plug values

A_2=\frac{15(1.4142)^{6}-15(1.4142)^{4}}{6-4}

A_2=29.99770

Average rate of change between 6 years and 8 years:

we can use formula

A_3=\frac{P(8)-P(6)}{8-6}

now, we can plug values

A_3=\frac{15(1.4142)^{8}-15(1.4142)^{6}}{8-6}

A_3=59.99425

now, we will check each options

option-A:

we can see that

A_3-A_2=30

A_3-A_2=30

So, this is FALSE

option-B:

A_1=\frac{1}{2}A_2

So, this is TRUE

option-C:

This is FALSE

option-D:

we got

A_1=\frac{1}{2}A_2

so, this is FALSE


5 0
3 years ago
If p=5x and q=3x-1, show that 2pq=30x²-10x
Georgia [21]

Answer:

<em>Solution in the attachment above..</em>

<h3><em><u>Hope it helps uh. !!!</u></em></h3><h2 /><h2><em><u>Stay</u></em><em><u> </u></em><em><u>Safe</u></em><em><u>!</u></em></h2>

5 0
2 years ago
$ 600 at 5 % for 2 years
Anarel [89]

Answer:

interest = $60

Step-by-step explanation:

use the formula i = prt

p = $600

r = 5%

t = 2 years

7 0
3 years ago
Read 2 more answers
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