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kondor19780726 [428]
3 years ago
11

Solve using substitution. x - 7y = 13 x + 4y = 2

Mathematics
1 answer:
belka [17]3 years ago
7 0

Answer:

second is 1.50 first is 11.15

Step-by-step explanation:

see if it works for you I changed my fractions into decimals

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Using hundredths grids for subtracting what is the answer to 1.65-0.98?
mote1985 [20]
I don't really understand this question do u have a pic
6 0
4 years ago
A girl scout troop makes $1100 in two weekends of selling cookies. If they continued at this rate, how much money would they mak
baherus [9]

Answer:

$3850

Step-by-step explanation:

It is given that,

A girl scout troop makes $1100 in two weekends of selling cookies.

2 weekend = $1100

1 weekend = $550

For 7 weekend, we will multiply $550 by 7 as follows :

7 weekend = $550 × 7

= $3850

So, for 7 weekend she will need $3850.

6 0
3 years ago
The chicken pen held 7 chickens. Each chicken lay 6 eggs a day. How many eggs world they get altogether after 30 days.
Tcecarenko [31]

Answer:

1260 eggs in 30 days

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3 0
2 years ago
Read 2 more answers
The expression sin 57° is equal to
ValentinkaMS [17]

Answer:

cos(33^{\circ})

Step-by-step explanation:

Given

sin(57^{\circ})

Required

Determine an equivalent expression

In trigonometry:

sin(\theta)= cos(90^{\circ} - \theta)

In sin(57^{\circ})

\theta=57^{\circ}

Substitute 57^{\circ} for \theta

in sin(\theta)= cos(90^{\circ} - \theta)

sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})

sin(57^{\circ})= cos(33^{\circ})

Hence, the equivalent expression is: cos(33^{\circ})

5 0
3 years ago
BRAINLIEST + POINTS! Help needed and explanation please!
sattari [20]

The Median is the middle value.

Arrange the numbers in order from smallest to largest:


Seattle:  23.78 , 32.46, 40.30, 45.79, 49.42, 55.14

Since there is an even number, the median is found by adding the 2 middle numbers and dividing by 2.

Median for Seattle: 40.30 + 45.79 = 86.09 / 2 = 43.045


Now do the same for Las Vegas:

2.33, 3.72, 3.84, 4.11, 5.62, 8.79

Median for Las Vegas: 3.84 + 4.11 = 7.95 / 2 = 3.975


Difference: 43.045 - 3.975 = 39.07


The answer is B.

5 0
4 years ago
Read 2 more answers
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