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gtnhenbr [62]
3 years ago
12

Quon has 15 cookies. He eats one in the afternoon and another in the evening. What number describes the total change in the amou

nt of cookies?
Mathematics
1 answer:
harina [27]3 years ago
5 0

Answer:

The number -2 shows the total change in amount of cookies. The negative sign signifies the decrease in the number.

Step-by-step explanation:

Total cookies Quon has = 15

Cookies eaten in the afternoon = 1

Cookies eaten in the evening = 1

So, total number of cookies consumed  = 1+1 =2

Cookies left with Quon = 15-2=13

So, the number -2 shows the total change in amount of cookies. The negative sign signifies the decrease in the number.

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7-5=2 so what is 7-2=? , free
Sergio [31]

Answer:

If 7 minus 5 equals 2, then 7 minus 2 equals 5.

Step-by-step explanation:

This is because of the associative property of equality.

<em><u>Please post #teamtrees #PAW (Plant And Water) if you have social media :)</u></em>

6 0
2 years ago
BRAINLIEST!!Felicia had $80 when she went to a music store that charges $18 for each CD. She needs to have no less than $20 in h
xxMikexx [17]

Answer:

The possible number of CDs she could buy is 1, 2, and 3.

Step-by-step explanation:

First, you have to make an equation to solve to find the answer(s):

  • 80 - (18 · x) ≥ 20
  • 80 is how much money Felicia has; 18 is for the cost of each CD; x is for the number of CDs; ≥ is no less; and 20 is how much money Felicia needs to have left.

1.) 80 - (18 · 1) ≥ 20

80 - 18 · 1 ≥ 20

80 - 18 ≥ 20

62 ≥ 20

Since 62 ≥ 20 is always true, there are infinitely many solutions.

2.) 80 - (18 · 2) ≥ 20

80 - 18 · 2 ≥ 20

80 - 36 ≥ 20

44 ≥ 20

Since 44 ≥ 20 is always true, there are infinitely many solutions.

3.) 80 - (18 · 3) ≥ 20

80 - 18 · 3 ≥ 20

80 - 54 ≥ 20

26 ≥ 20

Since 26 ≥ 20 is always true, there are infinitely many solutions.

4.) 80 - (18 · 4) ≥ 20

80 - 18 · 4 ≥ 20

80 - 72 ≥ 20

8 ≥ 20

Since 8 ≥ 20 is false, there is no solution.

5.) 80 - (18 · 5) ≥ 20

80 - 18 · 5 ≥ 20

80 - 90 ≥ 20

- 10 ≥ 20

Since - 10 ≥ 20 is false, there is no solution.

4 0
3 years ago
Read 2 more answers
Rich also has £400 pounds invest 3% compound interest . How many years does he need to invest the money to get at least £475
zepelin [54]

Answer: 6 years

Step-by-step explanation:

Formula to calculate compound amount: A=P(1+r)^t, where P= Principal , r=rate of interest, t= time

Given: P = £400, r = 3% = 0.03 , A= 475

Required equation: 400(1+0.03)^t\geq475

400(1.03)^t\geq475\\\\\Rightarrow\ (1.03)^t\geq\dfrac{475}{400}\\\\\Rightarrow\ (1.03)^t\geq1.1875

Taking log on both sides , we get

t \log 1.03\geq\log1.1875\\\\\Rightarrow\ t(0.0128372)\geq(0.0746336)\\\\\Rightarrow\ t\geq\dfrac{0.0746336}{0.0128372}=5.81385\approx6

Hence, he needs to invest the money for 6 years to get atleast £475.

7 0
2 years ago
Please solve this question.
Fantom [35]

Answer:

2 by 2

Step-by-step explanation:

A = \begin{pmatrix} 1 & 2\\3 & 4\end{pmatrix}

Since, given matrix has 2 rows and 2 columns.

So, Its a 2 by 2 order matrix.

6 0
2 years ago
Read 2 more answers
Correct answers only please! If you don't know the answer, then please don't guess or say what you think it is.
hammer [34]

Answer:

The option "C" is correct

#in my opinion#

Step-by-step explanation:

The size of a screen is generally measured diagonally.

Thus to find the diagonal length,

we take help from Pythagoras theorem

i.e. \\  {h}^{2}  =  {b}^{2}  +  {p}^{2}

where h (hypotenuse) is the diagonal length, b (base) is the length of horizontal side, and p (perpendicular) is the length of the vertical side of the TV,

THUS the diagonal length or hypotenuse

h =  \sqrt{ {b}^{2} +  {p}^{2}  } \\  \:  =  \sqrt{1024 + 324}  \\  \:  =  \sqrt{1348}  \\  \:  = 36.7 \:  (= aprox \: 37)

3 0
3 years ago
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