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3 years ago

9

the band members sold 316 juice drinks for a fundraiser. they sold 52 more grape drinks than strawberry drinks. how many of each

type of juice drink did they sell?

2 answers:

Delvig [45]3 years ago

4 0

S+g=316 "s"=strawberry "g"=grape
g=52+s

plug in for "g" to find "s"
s+(52+s)=316
2s+52=316
2s=316-52
2s=264
s=264/2
s=132

find "g"
g=52+132
g=184

Natalija [7]3 years ago

4 0

132 strawberry drinks and 284 grape drinks.

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3 years ago

53 - 21 + 62 + (25 ÷ 5)

Alisiya [41]

Answer:

48

Step-by-step explanation:

So your equation is: 5y3 - 21 + 6y2 + (25 ÷ 5) and y = 2.

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3 years ago

A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

6 0

2 years ago

What is the slope of the line on the graph?

erma4kov [3.2K]

Answer:

$m=\frac{1}{2}$

Step-by-step explanation:

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step 1: Find 2 points

(0, 2) y-int

(-4, 0) x-int

Step 2: Plug into slope formula to find slope <em>m</em>

<em /> $m=\frac{2-0}{0-(-4)}$ <em />

<em /> $m=\frac{2}{0+4}$ <em />

<em /> $m=\frac{2}{4}$ <em />

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3 years ago

At River Bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing

vlada-n [284]

Solution:

1. Account balance of customer= $ 1,000

Interest earned in checking account= 0.75%

Financial charge= $ 2

So, income earned in one month on the checking account

= 0.75% of 1,000 - $ 2

$=\frac{0.75}{1,00\times 100}\times 1,000 -2\\\\=7.50-2\\\\=5.50$

Option (B) $ 5.50

2. Checking account earnings at Baker’s Bank (I) = -0.09 x + 10.2

The earnings at Elite Bank are modeled by: I = -0.02 x + 7.5

The number of checks when Elite Bank start generating more checking account income than Baker's Bank is given by inequality,

→→ -0.02 x +7.5 > -0.09 x +10.2

→→ -0.02 x + 0.09 x > 10.2 - 7.5

→→0.07 x > 2.7

→→ $x>\frac{2.7}{0.07}\\\\ x>\frac{270}{7}\\\\ x>38 \frac{2}{7}$

So, the number of checks should be a whole number.

So, when number of checks = 39,→→Option (C) Elite Bank will start generating more checking account income than Baker's Bank.

3. Total amount in Emilio's checking account at the end of the week=( Beginning Balance= $ 728.32) -[4 Checks=( 99.48 +33.50 +18.23 +72.05)]+ $ 1109.90(Paycheck amount)

= 1109.90 + 728.32 - 223.26

= $1614.96 →→ Option (D)

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3 years ago