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sergejj [24]
3 years ago
6

PLEASE HELP WILL MAKE BRAINLIEST!

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0
I’ll help in a second
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What is -4 times -1 plus 3?
Tom [10]
The answer is 7. Double negatives cancel out so -4x-1=4 then add three
8 0
4 years ago
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The school that DeShawn goes to is selling tickets to the annual dance competition. On the first day of ticket sales, the school
coldgirl [10]

Answer:

Both child tickets and senior tickets cost $14.

Step-by-step explanation:

Since the school that DeShawn goes to is selling tickets to the annual dance competition, and on the first day of ticket sales, the school sold 10 senior citizen tickets and 8 child tickets for a total of $ 252, while the school took in $ 280 on the second day by selling 10 senior citizen tickets and 10 child tickets, to determine what is the price of each of one senior citizen ticket and one child ticket, the following calculation must be performed:

10 senior tickets + 8 child tickets = 252

10 senior tickets + 10 child tickets = 280

280 - 252 = 2 child tickets

28 = 2 child tickets

28/2 = 1 child ticket

14 = 1 child ticket

14 x 10 = 140

(280 - 140) / 10 = senior tickets

140/10 = 14 = senior tickets

Therefore, both child tickets and senior tickets cost $14.

3 0
3 years ago
Help help help math math
Andreyy89

Answer:

yes

Step-by-step explanation:

x increases by 2, and y increases by 3 consistently

8 0
3 years ago
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When you multiply a mixed number by a fraction less than 1, will the answer be smaller?
mars1129 [50]

Answer:

no when you multiply anything it will always become bigger multiply means bigger

Step-by-step explanation:

8 0
3 years ago
10.A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and askedto determine if the card was
lions [1.4K]

Answer:

Step-by-step explanation:

The sample proportion \hat p = \dfrac{50}{200}

\hat p = 0.25

The null hypothesis and the alternative hypothesis:

H_o: p = 0.20  \\ \\  H_1 : p > 0.20

Thus; the test statistics is:

Z = \dfrac{\hat p - p_o}{\dfrac{p_o(1-p_o)}{n} }

Z = \dfrac{0.25 -0.20}{\sqrt{\dfrac{0.20(1-0.20)}{200} }}

Z = \dfrac{0.05}{\sqrt{\dfrac{0.16}{200} }}

Z = \dfrac{0.05}{\sqrt{0.0008 }}

Z = 1.768

P-value = 2 × P(Z< - 1.768)

From the z tables

P-value = 2 × 0.03853

P-value = 0.07706

Thus, the p-value is 0.05 < P-value < 0.10

8 0
3 years ago
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