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erma4kov [3.2K]
2 years ago
7

3. Harbour decided to go to the new coffee cart to get his friends coffee and hot chocolate. Each coffee costs $3 and each tea h

ot chocolate costs $2. Harbour spent $15 total, and bought 7 total drinks. How many coffees did Harbour buy? How many hot chocolates? Write the equations for the this situation. a. b. Using elimination, solve the system of equations you wrote in part (a).
help please!!​
Mathematics
1 answer:
worty [1.4K]2 years ago
7 0

Answer: 1 coffee and 6 hot chocolate

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Calculate s26 for the arithmetic sequence in which a14=4.1 and the common difference is d=1.7
sweet-ann [11.9K]

Answer:

The value of s_{26}=84.5

Step-by-step explanation:

We have given  a_{14}=4.1

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So, a_{14}=a+13d from the formula

a_n=a+(n-1)d

When n=14

a_{14}=a+(14-1)(1.7)=a+13(1.7)

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a=-18

Using the formula:

s_n=\frac{n}{2}[2a+(n-1)d

When n=26

s_{26}=\frac{26}{2}[2(-18)+(26-1)(1.7)]

On simplification we get:

s_{26}=84.5



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3 years ago
What is the value of the expression below when simplified?<br><br> 4[5(3 − 1)]2 − 23
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Simplify the expression.
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3 years ago
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1. If the same number is added to the numerator and subtracted from the denominator of 23/12, the resulting fraction is equivale
ICE Princess25 [194]

Answer:

The number is -2

Step-by-step explanation:

step 1

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Remember that when multiply a number by its reciprocal, the result is 1

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Let

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step 3

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\frac{23-2}{12+2}

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8 0
3 years ago
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garri49 [273]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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If u have 345 snakes and 100 escape 23 die and 200 u gave away how many do u have now?
Digiron [165]
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3 years ago
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