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Svetach [21]
3 years ago
7

Draw a quick picture to find the sum or difference

Mathematics
1 answer:
MrRa [10]3 years ago
5 0
For sum u add and for difference you subtract

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Sari has 3 times as many pencil erasers as Sam. Together, they have 28 erasers. How many erasers does Sari have?
BartSMP [9]

Let

x--------> amount of erasers that Sari has

y--------> amount of erasers that Sam has


we know that


x=3y-------> equation 1

x+y=28-----> equation 2


Substitute equation 1 in equation 2

[3y]+y=28\\ 4y=28\\ y=28/4\\ y=7


find the value of x

x=3y\\ x=3*7\\ x=21


therefore


the answer is

Sari has 21 erasers


8 0
3 years ago
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Sally took $13 to the movies. She paid $5 for a movie ticket and popcorn. Which number sentence below will tell how much money s
Alla [95]

Answer:

n = 13 - 5

Step-by-step explanation:

Given,

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emmasim [6.3K]

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Step-by-step explanation:

t = total hours

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4 0
3 years ago
Can someone plz help me as soon as possible will mark brainliest
tankabanditka [31]

Answer:

b

Step-by-step explanation:

because logic sence

6 0
3 years ago
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Please help it’s just for A4 ignore All the other problems the equation is c=0.15t+2.50
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Answer:    sds\\ \\ x^{2} \geq \int\limits^a_b {x} \, dx  \lim_{n \to \infty} a_n \geq \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \pi \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]  \lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. x^{2}  \lim_{n \to \infty} a_n \pi \neq \sqrt{x} \neq

Step-by-step explanation:i need the think points

4 0
3 years ago
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